AMERICAN MORTGAGE COMPANY - Can't stop Telemarketing calls

I continue to get telemarketing calls from the same mortgage companies over and over even though I ask to be put on their “NO CALL LIST SO THAT I WILL NOT RECEIVE CALLS FROM THEM OR ANY OTHER PERSON WHO WORKS FOR THEIR COMPANY.” We put ourselves on a national No Call list, yet the only calls we get are ones from telemarketers from other countries. Today, I asked the telemarketer from American Mortgage Company to put us on their company’s no call list so that we can stop receiving these calls from members of his organization. He said he would do it, but it would not stop them from calling. Is there anything I can do?

Thank you

Brandi Moynahan