Back and forth with accounts department terrible

Im trying for weeks now to get an letter from Edgar's Account Department stating that my account is paid and it is closed! Today I called again was told I need to go into branch. I called head office - security was at reception and could not transfer me property. Eventually I cam out to accounts department again told me go to the branch. I wen to Edgars in N1 City Mall - Goodwood - Cape Town. They told me they cant help me the call centre needs to help me. I mean really?? Then called call centre after 35min on the phone was placed on hold for 20min still no response. Email was sent still on reply. IS THIS YOUR CUSTOMER SERVICE TO JUST GET AN LETTER FROM ACCOUNTS DEPARTMENT THAT SAYS YOUR OWN ACCOUNT IS CLEARD AND CLOSED? HORRIBLE how long do i still need to wait how many years?