I am trying to figure out if I should be charged any fees on 2 508's that i have in my house, and if I should be charged, what is the right amount for those fees? I have 4 receivers in my home, a 622 (primary receiver), a 211 (with HD & external HD/DVR) and 2 508s. My understanding was that 508's are exempt from DVR fees. However, Dish would never confirm this and has been charging me $6/month up until August last year (changed then to $10/month per receiver). I received a letter mid last year stating that the "508 is unique in that it carries no fees." http://dishuser.org/501.php I've already contacted Dish about the missing credit starting last August. But the major question is, have I been over billed the entire time since I activated these receivers?