Apple India — complaint regarding new Iphone xr

Address: Jabalpur, Madhya Pradesh, 482001

To whom it may concern,
Sir/madam
I bought a new i phone xr on 18 september 2019 from dharmendra mobile jabalpur madhya pradesh 482001, from the very next i facing various problems in my phone like it's touch is not properly working, sensors not properly working speaker is not properly working. After consulting from your experts i updated my phone into ios 13.2 but still m facing the same problem.
I bought this phone on the basis of the trust which apple and mr. Steve jobs gained in the market but this short of thing what to say now.
If apple india is not able to resolve my problem within seven days then i have to take the legal action against the company and as i am an advocate i will not hesitate to raise this issue in the high court.