As between a bank and its depositor, where the bank's negligence is the proximate cause of the loss and the depositor is guilty of contributory negligence, the greater proportion of the loss shall be borne by the bank.
This Petition for Review on Certiorari
seeks to reverse and set aside the Court of Appeal's January 31, 2006 Decision 
in CA-G.R. CV No. 81349, which modified the January 30, 2004 Decision 
of the Regional Trial Court of Manila City, Branch 46 in Civil Case No. 97-84010, and the June 26, 2006 Resolution 
denying petitioner's motion for reconsideration.Factual Antecedents
The antecedents are aptly summarized by the appellate court:
In its complaint, it is alleged that [respondent F.F. Cruz & Co., Inc.] (hereinafter FFCCI) opened savings/current or so-called combo account No. 0219-830-146 and dollar savings account No. 0219-0502-458-6 with [petitioner Philippine National Bank] (hereinafter PNB) at its Timog Avenue Branch. Its President Felipe Cruz (or Felipe) and Secretary-Treasurer Angelita A. Cruz (or Angelita) were the named signatories for the said accounts.Regional Trial Court's Ruling
The said signatories on separate but coeval dates left for and returned from the Unites States of America, Felipe on March 18, 1995 until June 10, 1995 while Angelita followed him on March 29, 1995 and returned ahead on May 9, 1995.
While they were thus out of the country, applications for cashier's and manager's [checks] bearing Felipe's [signature] were presented to and both approved by the PNB. The first was on March 27, 1995 for P9,950,000.00 payable to a certain Gene B. Sangalang and the other one was on April 24, 1995 for P3,260,500.31 payable to one Paul Bautista. The amounts of these checks were then debited by the PNB against the combo account of [FFCCI].
When Angelita returned to the country, she had occasion to examine the PNB statements of account of [FFCCI] for the months of February to August 1995 and she noticed the deductions of P9,950,000.00 and P3,260,500.31. Claiming that these were unauthorized and fraudulently made, [FFCCI] requested PNB to credit back and restore to its account the value of the checks. PNB refused, and thus constrained [FFCCI] filed the instant suit for damages against the PNB and its own accountant Aurea Caparas (or Caparas).
In its traverse, PNB averred lack of cause of action. It alleged that it exercised due diligence in handling the account of [FFCCI]. The applications for manager's check have passed through the standard bank procedures and it was only after finding no infirmity that these were given due course. In fact, it was no less than Caparas, the accountant of [FFCCI], who confirmed the regularity of the transaction. The delay of [FFCCI] in picking up and going over the bank statements was the proximate cause of its self-proclaimed injury. Had [FFCCI] been conscientious in this regard, the alleged chicanery would have been detected early on and Caparas effectively prevented from absconding with its millions. It prayed for the dismissal of the complaint. 
The trial court ruled that F.F. Cruz and Company, Inc. ( FFCCI) was guilty of negligence in clothing Aurea Caparas (Caparas) with authority to make decisions on and dispositions of its account which paved the way for the fraudulent transactions perpetrated by Caparas; that, in practice, FFCCI waived the two-signature requirement in transactions involving the subject combo account so much so that Philippine National Bank (PNB) could not be faulted for honoring the applications for manager's check even if only the signature of Felipe Cruz appeared thereon; and that FFCCI was negligent in not immediately informing PNB of the fraud.
On the other hand, the trial court found that PNB was, likewise, negligent in not calling or personally verifying from the authorized signatories the legitimacy of the subject withdrawals considering that they were in huge amounts. For this reason, PNB had the last clear chance to prevent the unauthorized debits from FFCCI's combo account. Thus, PNB should bear the whole loss -
WHEREFORE, judgment is hereby rendered ordering defendant [PNB] to pay plaintiff [FFCCI] P13,210,500.31 representing the amounts debited against plaintiff's account, with interest at the legal rate computed from the filing of the complaint plus costs of suit.Court of Appeal's Ruling
IT IS SO ORDERED. 
On January 31, 2006, the CA rendered the assailed Decision affirming with modification the Decision of the trial court, viz
WHEREFORE, the appealed Decision is AFFIRMED with the MODIFICATION that [PNB] shall pay [FFCCI] only 60% of the actual damages awarded by the trial court while the remaining 40% shall be borne by [FFCCI].
SO ORDERED. 
The appellate court ruled that PNB was negligent in not properly verifying the genuineness of the signatures appearing on the two applications for manager's check as evidenced by the lack of the signature of the bank verifier thereon. Had this procedure been followed, the forgery would have been detected.
Nonetheless, the appellate court found FFCCI guilty of contributory negligence because it clothed its accountant/bookkeeper Caparas with apparent authority to transact business with PNB. In addition, FFCCI failed to timely examine its monthly statement of account and report the discrepancy to PNB within a reasonable period of time to prevent or recover the loss. FFCCI's contributory negligence, thus, mitigated the bank's liability. Pursuant to the rulings in Philippine Bank of Commerce v. Court of Appeals 
and The Consolidated Bank & Trust Corporation v. Court of Appeals, 
the appellate court allocated the damages on a 60-40 ratio with the bigger share to be borne by PNB.
From this decision, both FFCCI and PNB sought review before this Court.
On August 17, 2006, FFCCI filed its petition for review on certiorari
which was docketed as G.R. No. 173278. 
On March 7, 2007, the Court issued a Resolution 
denying said petition. On June 13, 2007, the Court issued another Resolution 
denying FFCCI's motion for reconsideration. In denying the aforesaid petition, the Court ruled that FFCCI essentially raises questions of fact which are, as a rule, not reviewable under a Rule 45 petition; that FFCCI failed to show that its case fell within the established exceptions to this rule; and that FFCCI was guilty of contributory negligence. Thus, the appellate court correctly mitigated PNB's liability.
On July 13, 2006, PNB filed its petition for review on certiorari
which is the subject matter of this case.Issue
Whether the Court of Appeals seriously erred when it found PNB guilty of negligence. Our Ruling
We affirm the ruling of the CA.PNB is guilty of negligence.
Preliminarily, in G.R. No. 173278, we resolved with finality 
that FFCCI is guilty of contributory negligence, thus, making it partly liable for the loss (i.e.
, as to 40% thereof) arising from the unauthorized withdrawal of P13,210,500.31 from its combo account. The case before us is, thus, limited to PNB's alleged negligence in the subject transactions which the appellate court found to be the proximate cause of the loss, thus, making it liable for the greater part of the loss (i.e.
, as to 60% thereof) pursuant to our rulings in Philippine Bank of Commerce v. Court of Appeals 
and The Consolidated Bank & Trust Corporation v. Court of Appeals
PNB contends that it was not negligent in verifying the genuineness of the signatures appearing on the subject applications for manager's check. It claims that it followed the standard operating procedure in the verification process and that four bank officers examined the signatures and found the same to be similar with those found in the signature cards of FFCCI's authorized signatories on file with the bank.
PNB raises factual issues which are generally not proper for review under a Rule 45 petition. While there are exceptions to this rule, we find none applicable to the present case. As correctly found by the appellate court, PNB failed to make the proper verification because the applications for the manager's check do not bear the signature of the bank verifier. PNB concedes the absence 
of the subject signature but argues that the same was the result of inadvertence. It posits that the testimonies of Geronimo Gallego (Gallego), then the branch manager of PNB Timog Branch, and Stella San Diego (San Diego), then branch cashier, suffice to establish that the signature verification process was duly followed.
We are not persuaded.
First, oral testimony is not as reliable as documentary evidence. 
Second, PNB's own witness, San Diego, testified that in the verification process, the principal duty to determine the genuineness of the signature devolved upon the account analyst. 
However, PNB did not present the account analyst to explain his or her failure to sign the box for signature and balance verification of the subject applications for manager's check, thus, casting doubt as to whether he or she did indeed verify the signatures thereon. Third, we cannot fault the appellate court for not giving weight to the testimonies of Gallego and San Diego considering that the latter are naturally interested in exculpating themselves from any liability arising from the failure to detect the forgeries in the subject transactions. Fourth, Gallego admitted that PNB's employees received training on detecting forgeries from the National Bureau of Investigation. 
However, Emmanuel Guzman, then NBI senior document examiner, testified, as an expert witness, that the forged signatures in the subject applications for manager's check contained noticeable and significant differences from the genuine signatures of FFCCI's authorized signatories and that the forgeries should have been detected or observed by a trained signature verifier of any bank. 
Given the foregoing, we find no reversible error in the findings of the appellate court that PNB was negligent in the handling of FFCCI's combo account, specifically, with respect to PNB's failure to detect the forgeries in the subject applications for manager's check which could have prevented the loss. As we have often ruled, the banking business is impressed with public trust. 
A higher degree of diligence is imposed on banks relative to the handling of their affairs than that of an ordinary business enterprise. 
Thus, the degree of responsibility, care and trustworthiness expected of their officials and employees is far greater than those of ordinary officers and employees in other enterprises. 
In the case at bar, PNB failed to meet the high standard of diligence required by the circumstances to prevent the fraud. In Philippine Bank of Commerce v. Court of Appeals 
and The Consolidated Bank & Trust Corporation v. Court of Appeals, 
where the bank's negligence is the proximate cause of the loss and the depositor is guilty of contributory negligence, we allocated the damages between the bank and the depositor on a 60-40 ratio. We apply the same ruling in this case considering that, as shown above, PNB's negligence is the proximate cause of the loss while the issue as to FFCCI's contributory negligence has been settled with finality in G.R. No. 173278. Thus, the appellate court properly adjudged PNB to bear the greater part of the loss consistent with these rulings.WHEREFORE
, the petition is DENIED
. The January 31, 2006 Decision and June 26, 2006 Resolution of the Court of Appeals in CA-G.R. CV No. 81349 are AFFIRMED.
Costs against petitioner.SO ORDERED
Corona, C.J., (Chairperson), Leonardo-De Castro, Bersamin, and Villarama, Jr., JJ., concur.
 Rollo (G.R. No. 173259), pp. 46-54; penned by Associate Justice Roberto A. Barrios and concurred in by Associate Justices Mario L. Guariña III and Santiago Javier Ranada.
 Id. at 57-70; penned by Judge Artemio S. Tipon.
 Id. at 55-56.
 Id. at 46-48.
 Id. at 69.
 Id. at 53.
 336 Phil. 667 (1997).
 457 Phil. 688 (2003).
 Rollo (G.R. No. 173278), pp. 9-46.
 Id. at 119-123.
 Id. at 154.
 Rollo (G.R. No. 173259) p. 164.
 The March 7, 2007 Resolution became final and executory on August 29, 2007 as per entry of judgment [id. at 158 (G.R. No. 173278)].
 Supra note 7.
 Supra note 8.
 TSN, November 27, 2001, p. 40.
 Abella v. Court of Appeals, 327 Phil. 270, 276 (1996).
 TSN, June 20, 2002, pp. 14-15, 18-19.
 TSN, November 27, 2001, p. 62.
 TSN, November 19, 1999, p. 5.
 United Coconut Planters Bank v. Basco, 480 Phil. 803, 819 (2004).
 Supra note 7 at 683.
 Supra note 8 at 712-713.