Bad service - pls assist with cancellation

My vodacom data contract was set to expire in May or June 2023, but I decided to keep it instead of canceling. Someone from Cape Town upgraded and purchased a cellphone using my account from the vodacom store. I reported the incident and was told to get an affidavit from the police station. I submitted everything as instructed.

Every time I phone to inquire about a bill from Vodacom, they keep transferring me from department to department; the most recent time, I called, I was directed back to the Vodacom shop where I had first filed the complaint.

monthly payments are being deducted for a product I do not own,

very bad service, i dont wish to enter into long contract with this company. bad service