Number suspended despite debit order payment.

My number has been suspended for no rhyme or reason. The account has been paid in full via debit order and I got an SMS telling my account has been recharged with airtime and data. I have called the call centre at least 10 times today. No answer. No answer from Twitter service account either. In what way is this acceptable? I cannot make calls. Or send SMSs. Have to rely on my Telkom data to what's app. Pathetic!