Lenovo — lenovo k6 note a ridiculous phone waste of money

I have bought Lenovo k6 note and it is my worst experience in buying a mobile phone. I bought it on 30 March 2017 it hangs too much. Around one week back it's touch was not working I took it to the service centre and they changed the touch. And now there is some problem in the jack may be, coz sound is not coming from the ear phones. So to resolve this I formatted my phone then it started working. And now I am facing the same problem again. Sound is not coming from the earphone.
I don't have time to go to the service centre again and again neither I can afford to format my phone daily.
I want my money back.
Just take the bloody phone back and refund me my money. Ridiculous mobile phone complete waste of money