Who called from 9139999792

This number is unreachable. If you can't call back you should treat it as a scam. No legitimate business would not have a working phone number.

I've told them to stop calling but they continue to call.

Called and someone was yelling in Arabic...so it sounded. They called 3-4 times back to back and I answered, mad, and that's all I heard.

They called my place of employment and asked for an employment verification.  I gave her the hotline to our company's employment verification.  She was pleasant.

Received call from these folks about 8:00 Saturday morning. Did not leave a message and when I tried to call back it said something like this number is blocking calls???? Anyway, from the above comments I'm not going to worry since it is just another one of those rude-sneaky-etc: etc: businesses. Hope they get told off and stop bothering people!