Terrible Service

I had or still have a Blue Bean Credit Card which I have not used for more than a year. I made a payment in October 2013. The teller Machine in Wierdapark Cebnturion did not work and my money fell in the machine. I reported it immediately and went into Standard Bank Branch the following morning. I reported this. A month went by and no response. On 22 November 2013 I went into Standard Bank at Mall@Reds and sat there for 2 hours trying to recover the paid money of R750.00. After 2 weeks I received a credit on my account. I asked them to credit me with the interest charged whilst waiting for them to recover the payment made of R750.00. I was promised that this would be done. Nothing happened. I am harased with calls for payment but my problem is not being solved. The account has been handed over to lawyers which I refuse to pay before Blue Bean sorts out my credit with them. This card has not been used for more than 18 months if not longer!!