DMC5 ****mers

I have noticed that there is a listing on my credit report that goes as DMC5 my debt that i have had as been prescribed as it has been years that have passed, this company which has no right to be on my credit report since i owe nothing if my debt was prescribed i have sent in emails and got a response that i owe on a sportscene clothing account which i have over 7 years ago this company is a **** and i need assistance in removing this from my credit report before i take further action against these ****mers