Thomson Tv — Thomson TV apps not working

I bought Thomson UD9 40 inch 4K TV 6 months ago, but while playing Hotstar it's showing error while playing this video because media service unavailable on your device.
Same like on Zee app showing decoder error, on Netflix not playing videos, also Amazon prime video and JioTV also not supporting.
Everytime showing media service unavailable on your device. I m very disappointed buying this TV.
Service also not good not receiving calls many times called, and if receive saying technical team contact you and no any calls.