Breach of agreement

I was called about increasing my Revolving Loan, I did calcs and accepted.

Part of the agreement and reason I accepted is the interest rate would be reviewed. I was told that it was reviewed and agreed at a lower rate. The agreement was with Lindi L Manamela.

I just checked my statement and I see the interest rate is incorrect.

I simply don't care that I was told to wait and then call in after a month, you will urgently adjust and amend the interest amount you charged me, or I will enquiry about switching to FNB.

I've been a client for over 20 and now to treated like this pathetic!