I receive calls from this number, they have my name and personal information.
They will not identify themselves and attempt to ask personal questions.
I tell them I don't require their help, please don't contact me again.  They call
every few days using a different line. They are not born in the United States.
I don't know what to do. I try to run a reverse lookup and call back and the number
they display is not in service.

I am getting calls on my cellphone too. I called back using my work phone and it had a recording saying the number no longer in service? The numbers calling me change also. I am going to consult an attorney as I am on the do not call list and I have asked them not to call me but they continue to do so. I believe they have to pay you if they continue to call you if you ask them not to or are on the do not call list.

Same number keeps calling my cell phone. They don't speak english and will not respond when I do answer. Extremely annoying.

This is a fraud thing.  They tell you they are calling about the problem with your taxes.  I played along with them "no personal info given to them" to try and obtain more information.  If everyone that gets calls from this would turn them in they could get caught faster.

I just received a call on my cell# as well. I did not aswer the call but di googled. The # and came across the same postings! Uugh sor frustrating :-C