Blocking Account (ANGRY GOOD PAYING CUSTOMER)

I have been an account customer with edgars since December 2015, I have bought numerous times on my card and have never defaulted on a payment. I always pay over and above my installments. This weekend, I went to buy some bedding a clothes only to find my account has been blocked. heading to the long queue at customer service. only to be told I need to send my banking statements again for no reason that could be explained to me. I have sent all my paperwork in the first place as one would when opening an account. No one from Edgars contacted me in order to let me know I needed to send them these papers and no communication about blocking the account and the accounts rep i spoke to was no help what so ever.