I know it sounds like a pain in the neck but do it.Palisades accounts are fraud.
They cannot provide you with a copy of the contract you supposedly signed nor could they give me the phone number that the At&T phone was attached to. I fought them in court and won. Can you believe they are still selling that account to other law offices. However now I just send out a copy of the Statement of dismissal from the court.
Make sure they are not on your credit report..an entry by Palisades will kill your rating.
Palisades tends to target foreigners as they assume they don't want to fight it.
You will note that most charges are under 2,000.00 which is what a laywer would cost.You can do it by yourself..I did.