MANILA -- Davao City Mayor Rodrigo Duterte on Monday issued a special power of attorney (SPA) allowing his lawyer, Atty. Salvador S. Panelo, to request documents from the Bank of Philippine Islands (BPI) to answer allegations on his alleged hidden wealth.

Duterte did not appear at the BPI Julia Vargas Branch in Pasig City on Monday but his lawyer Panelo and Senator Antonio Trillanes IV
showed up at bank to settle the lawmaker's allegations of hidden wealth against the mayor.

In his SPA, Duterte requested BPI to issue certificates for his current balance, as well as to certify that "at no time since the opening of the aforesaid Bank Account was there a deposit either singly or collectively of Two Hundred Eleven Million Pesos (211,000,000.00)."

The SPA, however, does not specifically request for full and detailed transaction records, which Trillanes and Duterte's rivals have been asking that the mayor discloses.

Trillanes earlier accused the mayor of having over P200 million in deposits in his BPI account in 2014.

In an interview with ANC's Dateline Philippines, the senator said he gave Panelo an affidavit identifying his source as a certain "Joseph de Mesa," an alleged concerned citizen who is a former supporter of Duterte.

This is after Duterte challenged him to sign an affidavit revealing his source on allegations that the mayor had over P200 million in deposits in his BPI account in 2014 -- a claim that Duterte has denied.

TIMELINE: Duterte camp denies, admits BPI account

Panelo said the BPI branch told him that Duterte did not have P211 million in his bank account.

However, he said the bank has asked for four to seven days to decide whether to issue an official certification. The elections are on May 9.

Duterte camp won't reveal BPI account transactions for now