GoAir — refund for cancelled flight delhi to hyd

My request no is g[protected]
My pnr number is vf1z3e
My flight goair flight g8-422 from new delhi (Del) to hyderabad (Hyd) on[protected] at 20:55 was cancelled. Related to this i was issued a gst invoice on 2nd feb but still no money has been refunded.
Because of this i had to overstay and book for another day of accomadation since there was no goair flight the next day and had to book a much more expensive flight than i had earlier paid for