Cannot even upgrade - don't you want my money?

For months I received messages to upgrade, so you say you are interested and they call you but they do not do iPhone upgrades. So I go into the shops and they don't have stock. When I do try and upgrade when they click on my account it says "internal error". I went to 5 shops and got the same message every time, can you guys then not think to yourself that there is a problem with your system regarding my account. Eventually yesterday I catch an Uber from Adderley Street to Seapoint as they have iPhone 7 stock, and they log a fault. I sat for hours and the manager was meant to escalate. Eventually I said let's go have lunch and hopefully it will be sorted after that, came back just after 3 and the manageress had left for the day without resolving my problem. So I had been there from 12 until 3.30 and I left without a phone or upgrade and no resolution. I train thousands of people a year Telkom, should I use you as an example of poor customer service?