FNB Deducting Less For Loan Repayment

<p>So I got a temporary loan of R800 from FNB and I have to pay back R904,my understanding is every deposit that will be made after taking the temporary loan that money will go to the repayment of the loan. I then decided to pay back the loan and I deposited R1150 that was more than enough to repay the loan but FNB decided to only take R859 and I don't know why. I then had another deposit of R100 made into the account hoping they will deduct the rest of the money but still they didn't. I then again had another deposit of R120 made hoping they will take their money but still they not. I don't want to be in bad records ,can you please deduct the rest of your money,I have enough to repay you back in my account....PLEASE.</p>