Pay Per View review: Over Billing

Direct Tv is a rip off. Twice they bill me for pay per view I never got the service. Even I complained to them, they answered were "we can not do anything, it is over.
Besides, if they change the box where their card is, all the times you get charge according to them "their system never got the sign of the order". Imagine, they changed my box in 2013, they charge, latter when I noticed they were stolen my money I closed the account and they asked for the card and they billed me pay per view even from 2012.