ic systems contacted my about a debt from XXXX, the dates were long after we had switched, so I asked for the original bill to verify, which lead to them threating me about reporting on my credit. I responded in writing asking for verification, if I owe it I will pay it but the dates do n't make sense. But they have not responded to my letter and reported on my credit. I really do n't know what to do. Its not a lot of money but I am not sure its right. Thanks for you help