daikin a c 1 5 tonn 5 star - Daikin Breaks my AC

I have bought a *.* ton Alexa Ac from failing for ***** rs including * more AC varying * ton each and the *.* ton AC has been constantly repaired due to lack of inefficiency ..I have spent money on initial motherboard changes , replacement of circuits in outdoor unit , and gas exchanges , even after the installation has been done by company experts they blame us for poor installation of pipings and charged me extra for new pipings which are installed ina crooked way . Later when the technicians took the indoor unit * times to workshop and stated that it has no issues but pipings is bad, they later told me that the indoor unit has leaks and took it to workshop for the *th time . The company executive visited my home after we requested a replacement as the product has been I'll treated and he promised to provide a replacement as it's an issue of customer satisfaction. Later after * month we call him for update and says he can't give a replacement as it's warranty is about to expire and asks us to install the old one.
The complaint abt inefficiency has been raised abt * months from delivery and repairs have been going on since ,
After a total of * service visits for a year Daikin failed to resolve my issue , it's like they waited out time for the warranty to expire.