Just Jaldi.com — Not refunding in bank account

Address:

h.no 106 ward no. 10 jatauli, teh pataudi

First I called them and I asked that product is available or not, then they told that product is available, then I placed the order of Mi tv 5x 43 inch (Rs 31999).
Next day they called me that product is out of stock and we will not refund to your bank account, we will credit amount to your just jaldi wallet.
But I want full refund.