Vodacom Contract Cancelation struggle

I took a cellphone contract in 2018 with Vodacom and my contract ended last year September, I attempted to cancel once the contract ended, and I was told it was canceled yet every month there were debit orders going through, I ended up stopping their debit orders,this year June. So I went to Mtn to apply for a contract and i was told my name is on Non payers register and I was advised to go to Vodacom and sort this issue with them. Vodacom told me my account is in arrears I needed to pay before they can assist me, on the 24th of November I paid the amount was in arrears, and the Agent told me my account will be off arrears and and my status will be reinstated in the next 24 hours, and then I will be able to cancel my contract. I've been calling Vodacom everyday to reinstate my status and each and every agent is telling me they are requesting it to be reinstated and it will be sorted in the next 24 hours, and I can't cancel my account when my status is still showing arrears they've been updating it since the 24th of November and till today it has not been updated.