Took a contract from Game store in 2022 Feb for 2 tablets that stopped working in 2 months but continued paying for the contract

Took a contract from Game store in 2022 Feb for 2 tablets that stopped working in 2 months but continued paying for the contract. Until this January when I checked my bank statement and there was a debit order from Vodacom R1300, and my initial debit order has been R150. Until I went into a vodacom shop and was assisted by one patient guy who accessed my profile and told me that a *****ulent upgrade was done without my consent and no kyc documents were not updated aswell. Had to rush to the police station for an affidavit and till date calling the customer care to resolve this has been overwhelming. I'm very disappointed with the security that vodacom has when it comes to contracts. I've been with cell c and telkom and have never experienced such.