Jeeves Consumer Services — VU TV Apps Freezing Issue

I have a VUTV and my apps are freezeing, process is very slow, apps kick me out anytime during running, looses my registration settings or details, wifi issues, black screen while audio is on like whe we play songs on YouTube etc. I connected initially with Jeeves no response as they have refund policy further i contacted brand and on 1st soft update 2nd motherboard twice then wifi board then whole TV unit replacement. Now after 4 months issues is appearing which means TV make n model itself is faulty. I tried chasing jeeves as i am under complete protection. They aligned technician in 4 days later he waited for nearly 3 hours on call with Jeeves but no response. He took senior person on call still the same. This been done past a month now everytime i asked for refund 2 business days is a st forward answer and nothing happens