MTN terrible service to get phone black listed.

I lost my phone and needed a reference number from MTN in order to report it lost. I went to the police station and was told I need to call the service provider MTN to blacklist the phone first and they would give me a reference number then only then will I be able to get a case number from them. MTN has been pushing me from pillar to post and is literally making up excuses not to process my request. I was told my phone needs to be whitelisted before it can be blacklisted and only then will they cancel the card and the phone. I was told this would only take 24hrs. It's been 4 days and the manager Sihle Ndaba has not been processing the request and apparently no one else at the whole of MTN can process the request I must call him every single day every hour to beg them to get it done and this morning it still has not been done. I was told by one of their agents Mbali to call again at 10am this morning MAYBE one of the other managers will be able to help because he only gets to work at 1 pm and the whole day for four days he is unable to get this done. What useless service. what a useless Network. When you call the call centre especially at night, The call centre agents make such a complete raucaus. like they are partying and joking around in the background, laughing out loud, having personal conversations you can barely hear the consultant trying to speak on the phone. what a joke! silly excuse for a call centre. Sounded like a tavern.