Myntra.com — My money not refunded back

Website:

Www.myntra.com

My money not credited in my account. Myntra has provided me the reference number which bank is not taking as the transaction was done through Gpay not credit/debit card.
I have contacted the Google pay and they told me no refund was initiated in your account. As google pay is not a wallet or bank who can store money.
I don’t know why Myntra gives you such reference number which is of no use.
They don’t really give you amount back