Account Constantly Locked

Recently renewed my 3G contract. Was told that my remaining contract would continue for the remainder of the month, and the new contract would commence on the 1st April. All good.<br> <br> However, on the week following, I have had to contact the call centre on 5 occasions, as my 3G was not connecting. On each occassion, I was told that it was locked, but no explanation could be given. I tried to delve deeper to determine the problem - no luck. Helpdesk knowledge?? 4th time occured today, I finally get told that my account is locked due to credit limit being exceeded (last month and current month combined). Nevermind the fact that my account is paid via debit order. Get told to raise limit or make payment. I raise limit, and request immediate access. Request is denied, but I am promised it will be active on 2 hours. 8 hours later, still no 3G!! 5th call followed, which I hung up after holding for 30 min.<br> <br> I am paying for the 3G contract, I expect the service to work. Either sort out these issues, or cancel my contract. It is completely ludicrous to have to chase after *********** helpdesk agents.<br> <br> 3G number - ***<br> <br> Regards<br> Shawn