Poor service

No response to my communications for sevetal days. I purchased extra data a week ago but could not undertake EFT because pmt required an additional pin given to me when I opened my bank a/c 10 years ago. I made a rrquest via email (scknowledged) requesting they debit my card/account - something done before. They chose to suspend my account. They have deducted my payment due for May but still my a/c remains suspended. So now I'm being denied service for what I have paid for and they still fail to respond to my mails (auto acknowledged. The payment debacle initially was my fault, however the refusal to assist despite my facilties being paid for is a disgrace.