Any help apprecfiated. In 2014 I suddenly became seriously ill and moved to my sister's care in CA (from Stockbridge Ga). I didn't realize I had an outstanding bill. Eventually I'm sure it went to collections. Though I'm still in CA I wanted to set up home security. I just found out there is a sizeable outstanding balance with AT&T but Xfinity was unable to get this straightened out. I'm happy to pay the outstanding but how do I find out the how & where?