Shocking Service regarding queries about over payments!!!!!

In November 2020 I logged various queries on my account with vodacom. A gentleman by the name of Randal called me, I am still awaiting feedback from him regarding my queries. He advised that he needs to discuss the matter wirh his supervisor. Surely he can not still be discussing the matter. No feedback has been given, requested January 2021 invoice to check my billing yet still no feedback.

Vodacom has now decided to block my account due to non payment!!!! How do I make payment when my credits have not been passed and still have not received invoices to make payment. Shocking services Vodacom but to say the least!!!!