MTN customer care non excisting

I renewed and upgraded my contract in Oct 2022, 36 months contract. I've been ****med in Nov 2022. MTN ***** investigated and reversed purchases made on my account. Since Dec 2022 I cannot top up airtime or data as well as not access the MTN app to check my profile. "Greylisted" message. I've been struggling ever since. I've visited MTN stores. I've phoned 135. No success. And to email customer care, is useless. They don't even look to the trail of emails. Last email I got today, say that I must give the police time to investigate and relocate the phone!!! My phone was never ******. Its with me.