ABSA not delivering on Promise and now no feedback

In April 2015 I settled my ABSA credit card.I phoned in to cancel the card and was advised that I shouldn't't cancel it because ABSA will give it to me for free for 12 months (no monthly card charges) . I recently discovered with out them notifying me they have been accumulating card charges every month .I then phoned and emailed since Nov every time they say they can see that this was the case but the agent dido't put me on the \free "credit card system and they will come back to me with no response and in the mean time thr card charges are becoming more and more .The one agent said I will need to pay this money in order to stop the card .I feel<br> Helpless and at a dead end "