Bad Service on fixing my account.

Its been one month since I started this query with vodacom. My account has been overbilled as the upgrade I did on 12.03.2024 online which didnt recognise the number and allocated the handsets to my primary contract, which wasnt even due for an upgrade. On the insistence of Lennon (some sort of manager), who seems to be constantly unavailable due to training, I had to re-do the upgrade telephonically and return the other handsets to Vodacom. (major inconvenience for me) In week 25, I was unable to arrange collection with Lennon as he was in training. now on Monday 24.05.2024 Lennon sends me the pick up reference. On the 26.06.2024, Ram couriers Grahamstown call me for the pick up address. I am in Port Elizabeth. Lennon said I must wait as Ram couriers will sort it out. Today, 28.06.2024, I ask Lennon again, when are the phone being picked up. He tells me it takes 7 to 14 days for Ram to pick up a parcel. How ridiculous is this. Now another month is passing and another month I am being billed for an extra contract. Other than Vodacom cancelling the phones that linked to the wrong number on my account, I still dont know what Vodacom intends to to to fix my account. I have had to pay an activation fee and a higher contract rate as I had to redo the upgrade, which Lennon says there is nothing they can do about that as it is a different company. I am so angry and upset and it feels like me being with Vodacom for over 20 years makes no difference to them. I am paying more that I should be now and no one can rectify my account or even tell me how they are going to fix my account, nor when they will cancel and pick up the handsets.