Victim of ***** and MTN doesn't care!!!!!

My Samsung S22 was to be delivered on Friday 20 May by DSV. I received a sms confirming that the parcel was delivered however I did not receive any parcel. I called DSV today and they told me they have my ID copy and signature but no proof of address. DSV sent me the id they had and it's not me. The driver who delivered is not at work and his phone is off. They now saying they have to investigate. I call MTN as I need my phone, they can't help me they tell me to call Rewardsco. As they deal with online applications, call the number given to me *** and it says the offices are closed. So how am I going to get my new cellphone? I have been a loyal client of MTN and this is the service I get after being a victim of *****. I need some assistance as no one in their call centre can help!!!!