Problem with "CHANNEL NOT ACTIVATED"

I have had OpenviewHd now for about 4 months. About every second week the decoder just stops working. It displays "200 - CHANNEL NOT ACTIVATED - CONTACT CALL CENTRE "

Then you call their call centre and you wait for hours for them to talk to you. If you get to talk to them, they reset something and then you can watch tv again for a bit more than a week and then the whole process starts over again.

They say that you buy the decoder and then it is for free forever, but your airtime to call them all the time is not for free. If they know what the problem is, why don't they fix it? If it is a problem with the decoder, they must replace it. There must be many people who have the same problem.

It need to be fixed or else they must take their decoder back and refund us.