Poor account handling and horrible customer service!

I've had this account for over 2 years and recently noticed change in the debit amount. I contacted the customer care number @the back of my card only to be told I've been changed to a "Revolving plan", which basically means Pay less and increase the term. I first spoke to Angela in December, who advised that because I made an additional deposit they cannot change me back to the original plan I had, She will speak to her TL and revert. 3 months later because of no response, I contacted Customer care again spoke to Thandeka &Trinita, each time they put me on hold the call cuts off and they do not bother calling back. The last consultant I spoke to had no clue of my request, She kept saying the change in amount is due to the available balance however that is not true-I cannot be the customer but advise you on your job or highlight to you that the information you're providing is false. I expect a call back from someone who will know how to assist me and explain the root cause of my complaint. Right now, I have an account sitting on a minus due to false information and data, you cannot be running businesslike this. call me ASAP!!! ***