Konti y’amadovize ya Guaranty Trust Bank yorohereza abaikiliya kugira umutungo mu mafranga akoresha hanze. Amadovize ashobora kugera kuri konti mu buryo bunyuranye: nko kubikuza sheki iturutse hanze, kwakira amadovize aturutse hanze, ndetse no kubitsa bisanzwe. Abatunze iyi konti bashobora kubikuza ndetse no kohereza amadovize hanze.