VODACOM ONLINE - HELP

Vodacom online contacted me August 2023 to upgrade my 20G data line. I clearly informed them that I am not interested and will go in-store to get my upgrade done. In mid August 2024, when I was ready to do my upgrade, to my surprise I was told that it was done in August 2023 (without my permission). I went to a branch in Somerset West to try and sort this out and was told that they can't assist as online upgrades work independently from Vodacom. I got a number to call and they would send a recording of the upgrade to any of the two branches in Somerset Mall within 2 weeks, and they will contact me with details of where I can get the recording. Till today I have not had any luck in getting the information.

On top of this, Vodacom online has still been harassing me with at least one call a week to upgrade this number until last month even after I told them each time that I was still waiting for the recording.

How do you upgrade without permission and then still phone 4 to 6 times a month about an upgrade that was *******ly already done? Clearly someone messed up and was trying to cover it up, and now I am stuck with this contract???