I closed my XXXX {$19.00} home DSL account XXXX/XXXX/2015. Two weeks later I am receiving collection calls from this agency for a debt I do not owe of $ XXXX on my former XXXX account , before I even received my final bill from XXXX . I contacted XXXX, they claim no knowledge of this company or turning me over for collections, & claim to be sending me a revised final bill for a lesser amount which I have yet to receive. This debt collector has been instructed to STOP calling me yet continues to do so for a debt that is not mine, that is in error, & that is been denied by XXXX.