Dulux PaintPod Roller System Review

Got a Dulux paintpod roller system last week and was excited to try it out. Bought paintpod paint, very expensive and not much choice of colours, but was happy with what I purchased. Bought paintpod extension for doing ceiling and got ready to start. First bit of paint went on ok and then it stopped. Paint was not getting to roller and was taking forever. In frustration my partner went and bought a roller and paint and ended up doing the ceiling with this. When I tried to drain it the machine stopped completely and now I am left with something that doesn't work after having spent a lot of money on it. Will be asking for a refund, as I really do not want to try another, but this will still not reimburse me with the cost of the paint, two tubs and a ceiling extension which has made me out of pocket by around £50. Maybe I have been unlucky because I would imagine they are good if they work but there seem to be a lot of reviews where they dont.