Stay away from Edgars and RCS - customer service totally foreign to them

Acc was settled July 2020. Edgars bought by RCS and systems changed, amounts were "manufactured". After many messages, Edgars admitted in early Dec that they had made a mistake, and offered me a R100 voucher. Alas! it didnt last long. A week later they started with threatening messages that havent stopped since. Emails remain unanswered, phone calls handled by clueless agents. One of them actually told me that "I have to go to a branch, redeem the voucher and that transaction would enable me close the account!" Well, I have to try it since nothing else seems to help. RCS and Edgars are not companies I will ever want to deal with.