allied interstate called me today and left a message on my answering machine saying they were attempting to collect a debt. I know I do not have any debt. All my bills are payed and I do not have credit cards. I do not have the slightest clue as to why they would be calling me. I was thinking it could be a scam so I looked the company up on the internet and everything I have read about them is negative, including sometimes they contact you when you do not have debt. What should I do?