Beware of the RCS so called 1.75% interest

RCS attract the innocent customers by the 1.75% interest. I took their credit card and I regret it. Upon realising that I'm missing R350 from my account, I called the customer care. I was shocked when the consultant mentioned and calculated all these extra hidden costs that added up to the missing R350. I mean...from the 1.75%, how do you arrive at the ridiculous monthly service cost of R350. It makes sense why they give a 1.75 interest. But then again they should be honest with the applicants that a R350 will be charged monthly. I will be settling the account and closing it, had I known I would have never opened it.