Bad service and customer care

The beginning of July 2022 I orderd an iPhone 13 mini which was delivered to me on the 12th of July 2022 and on the 14th of July 2022 I opened the phone and realised I did not like it as it was too small.I called vodacom and was advised that Ram will contact me to collect the phone and once they receive it I can order a normal iPhone which is bigger.2 weeks down the line Noone contacted me and I called and was told nothing has been booked the lady booked the phone for collection .I called on the 3rd of August 2022 spoke to Honest and was advised no phone was booked for collection and he will call me back.I am really disappointed with vodacoms service now I am stuck with a phone I don't want