BOX OFFICE NOT WORKING

Box office account was working perfectly until i installed the new HD PVR - now nothing is working on my box office.<br> <br> I phoned in about 4x times and every time they promise to get back to me.<br> <br> When sms'ing the number to rent i receive a reply saying the smart card is not registered. When phoning they tell me it is registered and that the problem will be rectified within an hour...numerous calls to Boxoffice and two months later and still my box office is not working.<br> <br> Is this acceptable or should i just cancel my subscription?<br> <br>