Myntra.com — Refund sent to myntra credit

Hi,

I ordered 3 products of garments from myntra. I received the package and pay through online payment of rs.1516 via google pay. When i checked the sizes are different which i received so i request for return.

After pickup i get my refund in myntra credit not in my payment source bank account. When i call to customer care they said that you select myntra credit option at the time of refund however i don't choose any kind of option at the time of refund.

There is no option to choose refund source, they only asked about return reason and i select size issue and proceed. I can not see any option there that where i want my refund so how can i select the myntra credit option. I do not know if they auto select this option anywhere. Now this myntra credit amount cannot be transfer to my bank account that means they forced me to purchase products from myntra of that amount.
Is it right or there is any customer rights??
They doing whatever they want. Why i purchase from myntra, is it any kind of coercion to me that i purchase products from myntra. Pathetic site makes customers fool. I just want my rs.1516 refund amount in my bank account.

Thanks
Amit sharma