Happy Easy Go - No response on Refund on flight cancellation

I would like to register a complaint with you regarding my flight cancelled due to lockdown declared by govt . I had booked to and fro tickets on happy easy go website from Pune to Bangalore (**-April-****) and Banglore to Pune (** -April-****) which has been cancelled by the airline company (AirAsia) mentioning in their website that there are two options either reschedule or can have the refund as credit shell. When I tried requesting the heg to refund the amount as credit shell as per the airline's decision, I haven't received any response from the authorities of the heg website it's like neither the customer care was available on call nor I was getting any response over mail . As no response was received I thought of rescheduling the flight to June and the flight cost is lesser than i paid before, i rechecked the price with air asia website as well, but while rescheduling the flight i am asked for extra Rs.**** that even for one flight and the return flight was not available on the reschedule date I requested for , which to be frank is just a ridiculous way of ripping us of.
I don't understand if Air Asia had given the provision of getting the money in credit shell why is heg not giving us that provision . I visited Air Asia website and tried for the refund as credit shell but they say as the ticket was booked by agent (heg) i need to check this with heg , Air Asia cannot help on this . Here the problem is heg is also not trying to help , not even trying to respond on my mails .

Ticket details -
Trip * - Air Asia I*-****
Pune to Banglore - **-**-****
PNR and ticket no - J*PNSH

Trip * - Air Asia I*-****
Pune to Banglore - **-**-****
PNR and ticket no - FT*NRY