What if they refuse to give the address-Allied Interstate

What phone number are they calling from...have you tried to google it for the address? What are they collecting on?

yeah allied has offices all over the country.see where they are calling from.

You must of had some type of communication with Allied Interstate before they started calling? Like Paul suggested google the phone number and address.

Next time they call tell them that until you receive a debt notification via mail, as required per federal credit regulations, you will disregard their calls. Also, that until such notice is received, they are NOT to call you; that you will save your messages as proof they are violating the law and you will contact consumer affairs attorney; and then hang up.

I did that recently with a collector calling about a payday loan from 2009. Haven't heard from them since.

Good luck.