Have been getting call from NORTHEAST COLLECTION BUREAU claiming that I owe {$650.00} to XXXX XXXX XXXX ( NJ ) where I lived before ( 9 Years Back ). I have repeatedly asking them to send the details of bill and they ask me to contact the XXXX XXXX XXXX directly, giving me the reference number XXXX. I contacted them but they could not trace the details. Today they have threatened me for legal action, if I do not settle the bill. I have paid a settled amount of {$470.00}. I am not able to verify the credibility of this debt company and not sure if these charges are valid