Godrej Locking Solutions & Systems — Godrej door lock

I purchased a lock on 6 dec 2020, on Thursday on 1 dec a technician arrived for installation and informed the lock has some fault. He took the lock to service center and today on 12 dec he again came and tried installing but failed and stated that the lock is still faulty. He has taken the lock with him again. I called the customer care from my registered no. [protected] and miss Seema shelar talked very arrogantly. No customer care talks in such a misbehaving manner. The lock should be replaced and there is no point of repair as I have purchased a new lock.