TV = 42PFL6008S
current software QF2EU-0.171.56.0

I've had this TV 4 weeks and it has never worked properly. It changes channels on it's own, When I change channels manually sometimes I see one channel on the bottom half of the screen and another channel on the top half. Sometimes it turns off for no reason.
I have tried to update the software but the progress freezes with the "Loading" bar at around 80%.

There appears to be no proper support infrastructure. Are these forums the only course of action? Frankly I am most unimpressed with this product and lack of support and on current performance this item will be going back to the shop.