Hi Dave, my name is***** to hear you are having this problem. I will try my best to help you with your question...
With the newer Slingboxes you can use a custom remote file to work with the DCX3400.
Did the installer set this up for you?
Sorry for any confusion.
I am a user of this site just like you and I have nothing to do with the billing or accounts.
You can contact customer services to request a refund.