Midlant Credit Management MCM They had my name wrong and insisted it was right Phoenix Arizona

I recieved a call today from this company, and after saying hello 4 times someone actually answered. The first thing he asked was for my Social Security Number. I asked him if he was stupid. I was not offering my SS number to anyone let alone someone I didn't know. He proceeded to tell me what the last 4 of the number was and when I said that was mine he told me what he had for my name ( which was wrong) When I informed him he was incorrected he got rude and told me his record was right and I needed to pay T-Mobile $1000.00. I told him he was nuts and not only did I never have T-Mobile ( I am a Verizon customer for 22 yrs) but The name he has was not mine. I also asked how he got this home number since it is registered to a business that is not in a persons name. He said it was none of my business and wanted to know how I was going to pay for this. I demanded to speak to a superviser and he hung up on me.