Frustrated Customer

I took out a contract with Vodacom that came with 2 iPhone 8 and 2 sim cards. My contract ended July 2025. I called Vodacom beginning of June to cancel the contract. I was told it is canceled i even received communication. Only 1 number was cancelled which is ***. The other number *** was not cancelled. My last debit order was supposed to be on the 1st of August. On the 1st of September my account was debited with an amount of R273.99. I called Vodacom on the 2nd of September and spoke to Hajrah and he game the ref number ***. He told me that the contract contract for *** will be cancelled and i will be refunded the R273.99. I have been waiting since then. I have received a statement via email dated 03/09/2025 with an amount of R273.99 which is due. I called Vodacom today and the lady who was assisting me said it's my fault that only 1 number was cancelled because i didn't tell them to cancel both numbers. This is one contract that came with 2 phones and 2 sims.