Duncan Solutions, lnc. Credit Reporting Complaint

Duncan Solutions, lnc. Credit reporting department,

Incorrect information on credit report Account terms Maryland

After checking my credit report I fount a collection was made on my account for the amount of $100.00 and was opened on - -, -. After trying to contact the collector to dispute the charges made on my account I found the number to be unavailable. I tried to write to the company on - -, - at Professional Account MGM - - -. -, WI - and received no response. I would like this company to validate the debt under my rights by the FDCPA.