Paying for services that you don't enjoy

Am not happy at all with Dstv service. Two months back I couldn't use my pvr and catch up as it stated that disc was full I tried following the instructions to get it back to working but nothing helped until I went to a multichoice store it seemed like the pvr and catch up was working but when I got home now when I have to use catch up there's glitches you can't watch an episode where there's glitches throughout. It is really sad paying for services that you don't enjoy. I guess the only way to be happy about this is to cancel catch up rather.