Bad poor service

I have been having endless problems with my service provider.. Ive upgraded on the 7th of april 2021 and still have not received my devices. I have been speaking to upgrades department aswell as delivery and collections department following up on my contracts when more or less i will be receiving it but all they can say is i dont know or im not sure. When i spoke to a consultant complaining that saying i dont know or im not sure is not going to help she advised me that i can cancel my upgrade and then reupgrade when there is stock which i will never know... Worsed it i had to reupgrade my one contract due to the blue devices being discontinued which they never advised me i was told my a manager michael that i will be put at bottom of the list as the upgrade shows that i upgraded the 5th of may where i actually upgraded on the 7th of april 2021 i dont see why i got to wait longer due to cell c incompetence of telling me it was discontinued.. This manager michael is very incompetend as he said he is going to esculate my order which i never received a notification of escallation which i normally do.. It feels like my devices is never going to arrive.. Another thing is they are still selling these devices although there is no stock of it and there is a huge back order.. I have never had this kind of service when i got the contract with them previously.. Where can a person get answers how long more im going to wait because im not getting anything from their customer care upgrades or collections and deliveries. Not even a answer why its taking long.. Surely they should follow up so they can give their customers the right answers and not just say i dont know or im not sure the wait is frustrating now