TTK Prestige — Prestige Stove glass top - no responses from service team

Registered a service complaint about the stove nearly 25 days ago. I'm really disappointed about customer care executives, they is no proper responses after calling they always say we get back to you soon.
After 10 days they assigned one person he asked me model no and photograph of the stove. I sent him details again no response from prestige. After the follow-up call, they are saying need two more days. Repeated reply needs two days. Today they asked me to speak to the head office we don't have parts currently.

Complaint no - HYDE2333949