Eureka Forbes — Aqua-guard Crystal UV unable to repair and unsatisfactory service

1.We have raised multiple service ticket-[protected], [protected], [protected].
2.Escalated to deepa.[protected]@eurekaforbes.co.in but no response
3.Escalated to CEO helpdesk- DNR#21722, DNDR#22752

Issue - Aquaguard Crystal UV plus is not working from 9th Dec 2021. Technician is not skilled to identify the issue and fix it at once. There were multiple part which was reported by technician as non-functional but even after replace of those products the machine is not working and beeps continuously.
Past one month we are following up with technician, technician manager, customer care, support team but we just receive a standard reply that issue will be addressed soon. But hopes and efforts are going in vain. Feed up of Eureka Forbes services.