Voltas — Ac not cooling since purchase of 10 months

This is second time giving complaint for same problem
Registered mobile number [protected], [protected]
Complaint number [protected]
Please find the attachment for all service details
Since I purchased I am always in trouble about ac cooling .I am 1000 Percent sure that I received a damaged product because my ac not even done cooling for 10 days in 1 year since my purchase, I need replacement immediately or repair to be done with good technical knowledge technician, I am going to file a case on your company for giving me faulty ac
Please make a enquiry on technician who installed my ac.The technician behaviour is also worst I have ever seen in my life last time when I booked complaint he took 1 month to do work after 10 days same problem has began now I don't know what to do my hard earned money got wasted buying your company ac