Useless service from Vodacom

Please assist me with my account, I have been given the run around since last Friday. My account is NOT in arrears and I have been a loyal customer to Vodacom for years and this is not fair on my side. I have to call Vodacom every day to unlock my lines just cause someone at Vodacom couldn't do their job correct. I did an upgrade and the consultant who was assisting me added the balance of the old device to my monthly installment, at the end of January Vodacom debited the full amount. This is causing a huge frustration and inconvenience to me, Every time I call in they say my account is locked because I reached my credit limit (Which is not my fault as the incompentent staff member of yours caused this) I get told the matter is being escalated and it take 7 days, so for 7 days or more I must suffer with the inconvenience and the loss of business because of Vodacom. I have been told that a credit will be passed but this is still not happening. On the Vodacom app it says the matter has been resolved, please tell me what has been resolved??

When I call in to unlock my lines everyday, I have to explain the whole issue to the consultant everyday.