Disgusting service from RCS

Disgusted by the levelof service I have received from RCS so far. Upon settling my balance on the 28th November I requested them to close the account and send me confirmation thereof. 30th November receive confirmation that they received the funds but no letter attached. On the same day I request that I be provided with a formal letter of settlement and account closure. 4th December I receive a letter confirming the account is paid up but no confirmation that the account has been closed. Same day I request for the same letter of closure. I hear nothing from RCS until, 14th Dec I sent a follow up mail to the above. To date no response from RCS instead I receive a n email statement with charges from 12th Dec to the total of R72.42

I cannot be asking for the same letter for so long from a service provider. At this point RCS is forcing an account I no longer want on me and creating charges that will have a negative impact on my name. This is highly ********* and unacceptable!!