Personal loan changes and contracts

I have a current personal loan with Nedbank. My balance is R78 000 and I was paying R3400 a month. I wanted to take a new loan out for R90 000 to clear the R78 000 and have R12000 0ver. I had a pre-approval for it went to the branch and signed Contracts. The original installment they gave me was R3170 at a interest rate of 27.6%.<br> <br> They phoned me back on the 18/06/2015 and say there is a new contract that I need to sign the intrest rate is 32.5% and my installment will be R3300 now. It is based on my affordability. <br> <br> The installment originally was much lower so the affordability cant be a issue. They are trying to get more money out of every one so please check before you sign contracts with Nedbank.<br> <br> Will go to another bank to get better deal. The consultant at the complaints department Christoffer is arrogant and can not handle complaints.