Account Blocked

Hi. My account has been blocked due to a "***** hold". I was not even made aware of this until I realized on my receipt after paying my instalment that I had a R0 available amount. I enquired at a store this past weekend and they confirmed that it is because I made a large purchase last year after a long time. That to me did not make sense as I have been receiving messages alerting me of my available amount if I wanted to use my account again. Now am being told that if I want to use it again, I need to provide 3 months bank statements. First of all, those are expensive, my bank will charge me indefinite and second of all, why should I go through all this hassle when I have the right to use my account as and when I want to? This is an inconvenience as I have perfectly managed this account from day 1. I refuse to go through this when am the account holder. Edgars needs a copy of an ID and a statement declaring that you are the account holder, not bank statements. Can someone please assist me in this regard as am very frustrated right now? or I can close this account in a few months time seeing that Markham does not need me as 1 customer that I am. Thanks