[Resolved]  Croma — window a/c poor service

I've purchased window a/c in an year back at croma with extended warranty. During purchase, they've assured us they'll provide quarterly service.. Unfortunately no such service made till sep 2018. It has happened after the reminder mail. Again, it was happened after the reminder mail dated 1st apr 19. Now they are giving the reason that quarterly service will be done only on request basis. Also, when i complaint about board issue (Power on &off) at the same time, it wasn't yet resolved even after repeated mails and service request.
The worst service i've experienced with crime.