MakeMyTrip India — Assured amt on 11 sep not refunded yet

I had booked a flight Date :11 sep for MUMBAI TO GOA ((PNR: J9ZUJC) on Flight SG488) on 3rd Sept, the flight had been cancelled by the airlines company.
I mailed the airline company regarding the refund, as they confirmed that the amt has been refunded back to MAKE MY TRIP.
I received a message from MMT as the amt of 2980 shall be refunded back through google pay on 11sep.
Till date I haven't received the amount and when try to contact them only system generated mail and voice message are sent in reply.