Edgards account and poor service

I have visited the Edgars Fourways Branch twice in order to resolve an issue with my account, but they were not helpful. I was informed that they could not assist and that any errors on my account would be corrected with the October 2020 statement. I have received the October 2020 statement and I have found that the purchases in question still reflected on the statement and that I am also now being charged interest. I have never purchased on the 20 month Budget account before and this is now appearing on my statement as well. I have emailed their customer care as well at the end of October and have still not received a response. I am now considering closing my account.