Senator Alan Peter Cayetano, the running mate of presidential candidate Rodrigo Duterte, said in March that he and the Davao City mayor had signed a waiver to open all of their bank accounts.

"Pumirma na kami ni Mayor Duterte ng waiver. Lahat ng gusto maging Pangulo o VP ay dapat maging transparent sa taong bayan," Cayetano said in a March 15 Facebook post, with an accompanying photo.

A few weeks later, Duterte is being bombarded by calls to disclose his bank accounts to public scrutiny, after Sen. Antonio Trillanes accused the Davao City mayor of having a joint account with his daughter, Sara, at the Julia Vargas branch of the Bank of Philippine Islands that supposedly contains P211 million.

Trillanes said the amount was not declared in Duterte's Statement of Assets Liabilities and Networth (SALN) in 2014, where the mayor reported a net worth of only P21 million.

After initially denying he had such an account, Duterte on Thursday admitted that he has an account at the BPI branch, just hours after his spokesperson denied its existence. He, however, insisted that the account does not contain P211 million.

Sara, for her part, said in a text message to ABS-CBN News, that she has no knowledge of the bank account.

"Si Mayor Rody lang po ang sasagot ng tanong. Wala po akong alam sa existence ng bank account," she said.

However, a copy of a deposit slip posted by journalist Ellen Tordesillas on her Facebook account shows that the account is owned by "Rodrigo Roa Duterte or Rodrigo Roa Duterte and Sara Z Duterte."

BINAY, ROXAS SIGN WAIVERS

Vice President Jejomar Binay in March said he has already signed a waiver to allow the Anti-Money Laundering Council to investigate his lifestyle and executive performance.

Administration candidate Mar Roxas on Thursday also said he has agreed to open his bank accounts for public scrutiny, while Sen. Grace Poe expressed willingness to open hers as well.

Roxas, in a Facebook post, showed a notarized document allowing the Office of the Ombudsman to scrutinize his bank accounts for the duration of his candidacy.

Duterte said during the second leg of the PiliPinas Debates last March that if he is elected president, he will make it mandatory for government officials to sign bank waivers.