VODACOM SUBSCRIPTION FUNDS TAKEN FROM INCORRECT ACCOUNT HOLDER!!!!

I have requested phone number *** to be removed from my account.As a change of ownership has been done and confirmed by Vodacom in April 2021.This has been a ongoing problem since April.My son has given his details and banking details for funds to be taken off his account.Vodacom is still **********ly taken subscription fees from my banking account for a number that does not belong to me.I was phoned and advised that everything has been addressed and sorted however the funds once again went off my account at month end.Vodacom I need this addressed and sorted out as a matter of urgency as his is a ongoing problem