Samsung — Air conditioner - Wrong product or harassment

This Ac complaint is being filed from 2 months...
Bill has been sent to you..
Samsung is harrassing me very much..
Ur engineer Mr Abhijit is not coming on time and when coming always saying one more part is not working..
If all the parts are not working then why are you not doing it in working condition or replace it..
All the summer is about to go..
We are suffering all day and u are all sitting and enjoying in ur table..
This is the service of samsung..
Completely disappointed..
I need you to resolve my problem today or tomorrow .
Infact U told me on 6th July, we ll any how bring your ac working today .. Wat about your words..
Replace my Ac..
Take it as request or i i[censored] say wat should I do..
All o[censored]s are suffering too much because of samsung...
Bill photo has been added