CANT DO THERE JOB

on 26/05/2015 at 8:30 I went to my Brits Branch. at the office of the consultant I phone the credit card division requesting the settlement amount. I also asked the person on the line if the balance will reflect R0.00 once this payment was made, and she did confirm. 2 minutes later I did the payment via cash. I phoned yesterday to confirm that they did receive payment, the person on the line confirmed that the balance was R0.00. I phone today 27/05/2015 to close the account. I was informed that I had to cancel the credit card protection policy (witch I did not ask for). I did that and phoned the division again to proceed with the process. The person the informed me that there was a fee of R177.13 outstanding and to do payment to get my balance R0.00 I had to pay R191.63. he confirmed that I was given the wrong settlement amount. I asked him whose responsibility it was to give the correct info and he confirmed it was theirs. I asked him who is going to pay the balance and his reply was that I was liable. I asked to speak to the supervisor but was put on hold for 45 min. You tell me what to do.