IFB Industries — Ac remote exchange issue

I HAVE PURCHASED IFB AC 1.5T model number IACI18SA3G3C1 With Serial Number: 200 [protected] on 31/10/2022 from Shree Harsha Electronics appliances Bhatkal PIN-581320 and installation has been done on 02/11/2022 after installation i have noticed that in remote few main buttons were not working, authorized Technician has examined and told like the remote has to be replaced. I have contacted the dealer and told about the issue. he has registered the complaint on 05/11/2022, till now i haven't received the Remote for replacement. even after many reminders to service provider i haven't received the remote. Since purchase of Ac to till now i was not able to use the product because of the above issue. Kindly help in resolving the issue at the earliest