Cell C online and upgrade department ***********..

I upgrade my Contact on the 29th of May 2020 via online. They told me I will receive my new phone in 2 weeks after the upgrade. 2 weeks past an nothing, phoned them again and I was told wait one more week and still no delivery, phoned again then I was told I never did the upgrade? I decided to go in to store for the upgrade and everything was100% except we could not do the upgrade as the system did not alow us to do so. There was an upgrade pending???? After phoning day in and out holding for 50 min at a time we still can't manage to do a reversal on the system as there is just no support and no one can help you? Can somone just do a reversal of my upgrade on the system so I can do the upgrade in store for goodness sake. It's now nearly 2 months down the line. I'm supper annoyed and tired of the bad service at your company..