HappyEasyGo — Cancel ticket refund

I have booked my flight tickets(PNR-CQ9SSQ and OKGE3S for Indigo airlines through HAPPYEASYGO mobile application on 06.07.2022 and cancelled my ticket on 12.07.2022 due to unavoidable circumstances. At the time of cancellation it was declared by HAPPYEASYGO that the refund will take maximum 90 days. In between i have called and emailed many times to know the status the refund but it was said by the customer care that i will recieve my refund within 90 days. Now the timeline has been passed but no refund has been done by them and also the customer care is not responding to calls and emails. So it is requested to refund my money at the earliest as the same has been delayed very badly.