Unhappy Client with Cell C customer care

On Friday 29/07/2022 I reported my phone ****** and requested them to blacklist the phone. Gave me a reference number *** and said I will have the ITC number in 24 hours. Followed up again and said they received no instruction to blacklist a phone. We started the process over and again they said within 24 hours we will receive the ITC number. We followed up again and with no surprise they said there was no case logged. Did the process all over again got a new reference number again *** and again told us it would take 24 hours!!!!! I urgently need the ITC number to process my insurance claim and all Cell C does is constantly logging new cases and not solving the problem!!!!!!!