The affidavit also “recited that it was based in part on bank records, and it is clear from the context that the portion of the affidavit which set out the amount owed by [Costa and Achecar] was based on bank records.” Taquechel v. Chattahoochee Bank, 260 Ga. 755 , 756 (2) (400 SE2d 8 ) (1991) (citation omitted). An affidavit that refers to bank records to establish the amount owed on a debt must attach those records.