HP India — Laptop encurred physical damage after a technician visit

On 5th July, my laptop had a speaker replacement by the technician sent by Hp, within a day, the right hinge loosened, and the right corner of the frame popped out, causing screen burn.
I tried contacting HP since 5 days, they aren't giving any response or update to that case.
I request a replacement, or repair of the same as my laptop is in warranty.