Horrible service at iStore Menlyn

Hello Peter. I had an awful experience at the iStore branch in Menlyn. I called the iStore call centre to order a new phone because I was due for an upgrade. I was told to come to the store the following day and collect the phone. I went to the store and looked for the lady who assisted me over the phone. Unfortunately I was told she cannot assist me as she doesn't work under the contracts department so I was referred to another employee named Ayjay who was supposed to assist me but he had no idea what he was doing. I wanted the iPhone 12 128GB but he filled in incorrect information on the application forms and app**** for the 64GB instead. When he realized the mistake he made, he suggested that I just take that phone. I asked to see the manager who also refused to acknowledge the mistake made by his employee and just rudely told me there's nothing that can be done so I'll just wait for 24-48 hours and return to the store to fix their mess. I was also told about having to pay a R250 upgrade fee which wasn't discussed with me over the phone at all. I'm upset because I had to take leave from work and drive about 35km to go to the store only be treated so horribly. Now I have to take leave and drive all the way there again. I feel like I deserve a sincere apology