Wrong Edgars accounts statements and balances

I received a statement in September indicating a purchase of over R 1 000 which I made in August in Sasolberg. I stay in Bloemfontein and never been to Sasolberg and never made a purchase. I went to the store, they phoned the office for me and I was assured that it will be sorted in the next statement. Lo.... nothing happened. I sent an email with my query and waited for almost 2 months to get a response which was actually not addressing my query. I received a forwarded message to another department to deal with the query. Worse still my next statement had another purchase which I never did and extra insurance covers. I sent another query, still no response. I am really frustrated!!!!! Can they at least respond.