Purchase deducted twice

Hi! Hingi lang po ako inputs niyo sa encounter ko kagabi if ever may mga similar experience po kayo.

Nag transact po ako kagabi sa merchant and yung first attempt sa pag tap ng card upon payment, nag decline daw po yung card ko. Nakita ko din naman may red X icon indicating card declined or not detected. Wala din nag print na resibo dun sa terminal so I assumed hindi siya nag push through.

Second attempt sa pag tap sa terminal, nag proceed naman na and nag print na din yung receipt.

Though later after ko makaalis sa store, napansin ko po sa UB app na nadoble yung transaction ko.

As of now pending pa naman po and hindi pa posted parehas pero deducted na sa CL.

Ask ko lang po, marefund po kaya yung first transaction after mapost?

Not sure sino need ko lapitan now if si merchant ba or si UB.

Tried reaching out to UB pero:

• For some reason, I can't seem to proceed with my request ticket sa UB Online app mailbox. Unable to process at this time daw. Try email or hotline.

• No longer processing na daw sila ng inquiries sa customer.service@unionbankph.com

• Tried calling sa hotline panay auto voice response naman

Thanks in advance!