Unauthorised Debits from Vodacom!!! *****!

I recently had Vodacom taken funds from my account wrongfully and without any authorisation from me at all. A contract which was 5 years ago. Settled, closed and cancelled. Number taken away from me and dormant 3 years back. I do not possess the number and did not wish to going further upon settling and closing the account. Consultants informed it will be cancelled upon settling the account which I did and made sure even paying the settlement amount more than required having a negative figure as a balance for years. This past month in the year 2025 (3 years later), Vodacom decides to debit my account without any authorisation from me, get into my bank account and take a large figure out of it and now refuses to assist and have this matter resolved, for a number I do not own or any contract that I have with Vodacom!!! This is total *****. Call centres even went to the extent of blocking my number due to the high volume of my calls trying to get through to a single consultant for assistance! So if they don't pick up who's fault is that? That my number gets blocked from calling them! Last consultant I spoke to mentioned they will continue debiting and it's a must. This is absolutely wrong from the company and I require my monies returned to me!!!!!