In XX/XX/2015 I noticed an unknown entry on my Equifax credit report from a " XXXX Collection Service '', which also goes by the name " XXXX '', Acct # XXXX. On XXXX, I sent a certified letter, was received on XXXX, requesting validation. I did n't get a response at all. In a letter sent XXXX, I disputed the above tradeline with Equifax. In a response dated XXXX, Equifax " Verified '' the entry.