Air Asia — refund request no reply from airline -

We have made the booking kolkata to bali pnr t4sq7n. Total amount which i paid 37, 874 for 2 persons.in this pandemic situation where all the tickets booking are cancelled and as per dgca guidelines travel between 25 march and 3rd may, will be eligible for a full refund.
This information is also mention in air asia twitter account.

But air asia is not refunding the amount they are providing credit voucher which is waste for me, i am not frequent traveler, they are not replying the over email and twitter and their customer care ppls are worst they are not entertaining.

Please help me on these.