Reliance Digital — split ac servicing

I had placed a service request: [protected] on 7th september, 2020 for the product samsung sac 1.5t 5sinv ar18nv5hrtr and the technician was supposed to visit the day after that is on 8th sep but till now no updates on that nor the technician is picking up my call. I tried to reach out to customer care no [protected] for the same, but they are also not assuring anything nor they giving me any definite time slot.

Even i got a sms that the technician was assigned to visit me on 8th sep, but its 9th sep and there is no updates; not sure whom to reach out to now. I have an extended warranty support with reliance digital but it seems i made a mistake for paying the extended support warranty as i can the customer approach from reliance digital is pathetic, they are least bothered to attend to customer complaints even when we are paying for it.

Please look into it and i would like to escalate this.