Upgrade turn to new contract?

I phone Vodacom online to do an upgrade on my assisting phone contract, instead they deliver me a new phone contract with the new phone that I requested for my upgrade in end of July 2020. On receiving the phone by courier i opened it up and saw that is with a new number, so i called Vodacom 082135 and after many explanations and cut offs and re-phoning they said that phone will be collected and then the contract will be cancelled and my money be paid back. After two weeks phone not collected and same promises made to me. Then decide to visit Menlyn Vodacom on 29-09-20 for support and they also contact courier services for collection and said that package will be collected in two days? After four day I drove again all the way from Delmas to Vodacom Midrand for assistance the help was great but again promises of collection, and now on the fifth still nothing and struggling to call support as they just cut you off or let you hang on. Already one moth payment off and no answers for my problems. Very unhappy with Vodacom and their support.