Usha — Usha ceiling fan - service not giving

I have raised complaint for service request but till now no one responded. Please find the below complaint details raised on 02nd September 2023
Dear USHA Customer, your complaint no CC[protected] is assigned to Mr Venkatesh Uttharadhi, [protected], he will call shortly to fix up time with you. Please see the identity card of the technician to check the name informed earlier. Any Service/Spares charges to be paid to assigned engineer only against receipt. Company is not liable in any manner for any payments made to unauthorized persons

After multiple follow ups and raising this complaint