no BIS service but still have to pay

on Wednesday 22nd July my BIS service was deactivated even after payment was received by them via debit order, I phoned them and they advices me that Vodacom is upgrading lines the problem should be fixed soon, in the afternoon I phoned Vodacom who told me that rmcs has deactivated my BIS. I phoned and they told me to phone the post paid company which intern locked a call and told me to phone Elite mobile. since 22 July I have been phoning numerous times with no response from them, all they tell you is that someone will phone you or the query has been locked or an escalation has been done on your query, they cant give you a turn around time or even have the decency to phone you back or send you an sms, this morning once again I phoned them they said I must first pay my account for august and then they will activate my services which I already paid for. why in the world do I have to pay them again for services which has been paid for, I haven't received any proper answers from them or feedback, they confirmed that the account is up to date, they cutted of my service within a minute but now takes days to fix it this is the worst service received ever from anyone AND I HAVE TO PAY FOR