So much for being an Exclusive Customer with Cell C !

I successfully upgraded my contract with cell c on 7 July 2021. Other than the actual contract received from them confirming that I have successfully upgraded my contract , I have neither received the handset or communication confirming when I will be getting the handset . Instead , I received a call from Cell C, selling me a data package. I sent them a follow up email on the 19th July and got a response - saying they are out of stock . No indication of when I can expect the phone to be delivered. I have been on the phone with their customer services team , as an " exclusive customer" for over 30 minutes, waiting for some sort of feedback . I have asked for a manager, and I have been on hold for 20 minutes.