Hitachi — AC and its remote is not working from the date of installation

Address:

Patna, Bihar

I purchased a ac model RAW018KTH sr no.[protected] dated 05/06/15 in patna Bihar. At time of installation the installer is not able to use the remote and even AC is not cooling properly. So they told that they will change the AC remote. After repetitive follow-up the hitachi technician turned-up on 28th June and confirmed that the remote is not working and AC need to be repaired. Have we purchased a 2nd hand used AC? At the peak of season we are not able to utilise the cooling from AC This kind of support we never expected from the Hitachi. So kindly replace the the AC.