Eureka Forbes — Service not provided even after several escalations and follow up (With valid AMC package for 3 years 8999rs)

This is reg on going issue CM[protected].
I have raised initial request (CM[protected] on 16th December for normal regular service. After 3 days of follow up, technician came on 19th December and forced me to pay 8999 Rs as AMC amount for 3 years. Only then this service can be done. So, I took that package and next day 20th December another technician came and replaced my filter and motor (replaced my new motor with some old motor) and said it is part of package to replace filter and motor once in a year. Within few hours my machine stopped working and I called same technician. He said he will fix it by 21st December. He raised new request on 21st December (CM[protected] with ETA as EOD for closure. Since then, he is not picking my call.
I started calling customer care from 21st December and they give me standard reply 'within 24 hrs issue will be fixed. Issue escalated to next level team/higher officials'.
I started email conversation with customer care team from 23rd December, and I get the same reply from them 'within 24 hrs issue will be fixed. Issue escalated to next level team/higher officials'.
From google I got grievanceofficer email ID and started conversation with them from 3rd January and I got the same reply from them.
At the time of taking AMC package, this technician came to me home within 4hrs after escalating the issue and collected 8999 rs from me. And he confirmed me all service will be done within 24 hrs after taking AMC package. If parts are not available, then then filter will be replaced. Now its 15 days, no response from him and he is not picking my call.
From the Eureka forbes app, I can see a technician assigned on 26th December and I have given these details to customer care (both call and e-mail) and grievanceofficer but no action from their end.
In short, the machine is dead from 21st December (After their service) and they took 8999 rs from me in the name of AMC and no service provided. Now I am buying water from outside for my daily use.

Attaching the screen shot for mail conversation.