This # has called me 2x (1 per week) and they cant speak enlist.

I had the same experience as Ravi and Crystal.. My first name, but wrong last name. When i said you have the wrong person, they hung up. Did not reveal who is calling or company name even though i asked multiple times.
I don't know how and where they got my office number.

They called my Skype number. Just hung up when I answered. I blocked the number.

I just get hangups from that number.  They leave no message.  Upon call back you get a generic message that "the party is not available"

Called and asked for sombody named Crystal, and I told him it was me.  Then said he was looking for Crystal Johnson (not my last name) and I told him he had the wrong person and he apologized and said he had the wrong information.  Didn't think anything of it until I saw to post from Ravi who had the same experience.

Rang and Registered but stopped.

This number called me asking for my first name but a different last name, i thought its original and revealed my name and company.

Huh.. looks like another social engineering attack ..

f---ing solicitors calling my job, cant speak english, asking for employees who arent here!!!!!!!!!!!!