STOPPED DEBITS

I am losing my confidence in Vodacom. Last year my debit orders just stopped, Vodacom stopped billing my account and were sending communication to email addresses and cellphone numbers that were linked to older contracts, which were supposed to have been updated on the sales call for the current contract. I was not aware that my account had since been handed over to VVM who was then smsing my ex husband details regarding my account status. In January , this year, I called the pre-legal team and made payment arrangements regarding the outstanding arrears for R604, which was in fact supposed to have been paid up by August 2020. Vodacom has since only debited my account once, or twice for the most, and after calling in, I was told my sim card has now been suspended. I have also been requesting for my surname to be updated since last year, I have emailed my ID and Divorce decree for a good few months, I am not even sure if that has been updated. No one calls or gives any sort of feedback. Can I please have an explanation as to why the debit orders stopped running on my account. I have scheduled it on the 26th of every month, which ensures fund availability. I have not placed any stop orders on my account, so please i need to know why you just keep stopping my debit orders. Rather provide me banking details to make payments, as it seems i might be paying this contract forever.