Customer Care non existent.

I have a query on my LTE data package dating back to November 2020, and have been unable to find anyone to sort this out. I have sent 24 emails to various departments, have phoned customer care literally hundreds of times over the last 10 months, and now my CELLULAR service has been suspended, which has nothing to do with the LTE package. I am still waiting for a phone call, always promised for 1 business day after receiving my emails. No phone call, no service, and my emails get passed from department to department with no resolution in sight. Customer Care can go no further than to inform me it is due to non payment, yet my queries (billed twice for one top up, and also having no service yet data disappearing) are unresolved and I haven't come across a single employee who can point me in the right direction to resolve this. They can only suggest that I pay the account to have my Cellular service reinstated, and the queries will be sorted out later! It's already 10 months, unfortunately I have no faith in Vodacom ever resolving this. And to make matters worse, they have now blacklisted me as well.