Bad customer experience

Brought a Hisense tv back in 2015. Till today the tv has been giving me problems & it has been fixed 4 times by Hisense & in May it need to be fixed for the 5th time. I called Hisense & they send someone to fix it but I refused, reason being it the 5th time with the very same problem. Since May 2019 Hisense said they will come & pick up the tv but nothing has happened till today.