Vodacom problem with cancel of router wi-fi.

I have been trying to cancel my router (wi-fi) for over 2 weeks with no success from Vodacom. My contract has expired. First of all, my call was to cancel my contract in full on the 3rd October. The vodacom staff member, unfortunately, I can not recall her name, didn't listen and bully me to take another contract, which she did a migration on. I even went into the Vodacom shop, and they confirmed they could not assist with the cancelation, and i must phone ***. They also confirmed that the person at this number will not listen and try to sell me n new contract. Which she did. After the 3rd time following up on my cancellation request, i was told the back office must review my cancellation of the new migration order, and wait for a reply from them. Hopefully, i will have a reply - confirmation of cancellation request by Wednesday 18th October 2023 as confirmed this morning by the Vodacom staff member on number ***. Why can't cutomers only cancel a router wi- fi contract at the above number and not in the Vodacom branches?? Not sure if anyone else experienced this problem.