Telkom *********, horrible service

I have done an upgrade in February 2025, and the guy who was assisting did the upgrade incorrectly. I received the incorrect phone and immediately the next day I contacted Telkom to correct the error and they have logged a request to collect the phone and the very next day courier collected the phone, and since then I have called in numerous time for this to be cancelled and to do the correct upgrade, I have spoken to numberous consultants and a manager and still nothing. This is ridiculous of which Telkom is not forcing me to pay for a phone I dont even have.