Mortage was sold to another company. Now the name on the loan is different.

I purchased a home about 3.5 years ago. The loan was transfered or sold to another mortgae company recently. Somehow during the transition my name was taken off of the loan and someone elses name is now on the loan. I don't even know who it is. I was the original and only name on the loan (no cosigner) and I never refinaced or changed anything. Now I need to send payments and I don't know what to do. The new mortgae holder will not talk to me because my name is not on the loan. The original mortgae holder say they have no records of me or the loan after I have been paying them for the past 3 years. I have all paperwork and proof of the loan. Any advice? - Is this your question? Add additional information