Bad customer service

I am absolutely appalled at the service I’m receiving from MTN so far I just recently app**** for a new contract with them I have never been an MTN customer before but they gave me the best deal, when applying I received a million calls a day from MTN just to get the contract approved but after completion of my contract I now am doing the run around to get my phone I’ve had to call the call centre multiple times and be put through to different departments getting cutoff eventually getting through to someone who then just gives me another number to call. I have sent emails to which I have received no responses my phone was supposed to delivered yesterday the driver from the courier which MTN chooses to use could not hand over the phone because of failed fingerprint biometrics authentication. I am told from the courier company it’s an error on MTN’s side at this moment it’s 2 days later I’m still running around trying to get an answer on how to receive my delivery MTN does not respond to customer care emails the 135 number is the worst I am sick in bed with bronchitis which is why I need my phone to be delivered yet I’ve had to endure all the extra stress. I am regretting chosing MTN to have as my service provider at this point.