Bad Bad Service

I upgraded a month ago to an advertised deal online with Cell C for a Huawei P40 Lite with a Huawei Watch GT2. They approved everythin and said that they will probably have stock in the next week. It has been a month now and they seem to have no idea or clue where the stock is, if they will ever get stock or if stock even exists. They had the audacity to charge me pro rate for the upgrade las month and then my bill for this month is also charged for the full amount. They keep on using the same useless excuse that they dont know if and when it will come. Then I went in to the site again today to change the upgrade to a Samsung S20 with the Samsung Active Watch and then the same story again, they dont have stock, but now they said that the models has been discontinued. How can it be discontinued if literally everybody else has stock of it. I always used to like Cell C, but they have seriously gone down the drain with their service. Please do not ever consider moving to Cell C, I will take it up tomorrow with them to cancel both my contracts with them.