Getting sick and tired of RCS: Refusal to close account

I have finished paying my edgars account months ago and I keep getting sms claiming that I owe them for card fees etc. I called RCS and edgars customer care on many occasions to close this account without vain. In December 2020 I paid the R86 that I was told that I owe and I sent them a proof of payment and an email instructing RCS to close the account. Clearly my words falls on deaf ears and I am getting sick and told because I received another statement that I owe R30.00.