Problem of closing my credit card account

I have been calling Capitec bank customer care number *** since the morning today and being sent from pillar to post, just to close my credit card account. The first time I called to close the account I was assisted but the account was not closed, it was on the beginning of this month. The second time I called in seeing that my account is not closed and being charge the so called service fees. The lady I spoke too did not close my account last week either but they said they are going listen to the tape of my fist call I made and investigate why my account was not closed as per my request. To my surprised no one has called me and I have one again charged the service fees. I don't think this is fair. Can some one senior investigate and correct this.