Charged for a credit card i have never used

i received a call from Absa sometime in November offering me a credit card, i accepted the offer telephonically and after that i never heard from them again. To my surprize i received a statement via post confirming that i owe an amount of R228.83, I went into branch where they confirmed the amount was for bank charges and it has now increased to R277.53 since the date on the statement. i called Absa this morning to question why i should be charged for a card i do not have and have never even made use of. what surprised is that they could not even confirm if the card was sent to me or not. To my understanding bank charges will be charged for transactions made on the card and no where did Absa disclose to me or send me anything in writting to confirm all this. i do not want this credit card anymore and want this debt cancelled as i refuse to pay for something that does not make sense. the consultant told me they will not cancell it as i will have to pay first, pay for what exactly ? what happened to treating customers fairly, i cannot even use this card even if i wanted to but i now have to pay for it, this is unfair treatment and i will not allow this.