Woohoo.in — Refund not received from a month

Hello, I'm Sumeet Soni, last month December 24, 2020, i had paid Rs. 1000 twice to Woohoo.in for 2 Gift Cards amounting Rs.1000 each via Google pay & received order confirmation mail from Woohoo.in, after some time both orders were cancelled & Refund was credited to my account only once. I'm waiting for Refund of Rs. 1000 from more than a month . I contacted Woohoo support 2-3 times, they are saying payment was failed from your end contact your merchant bank. If payment was failed how can Woohoo sent me order confirmation mail. They are lying to me. I'm attaching screenshot of order confirmation mail received from woohoo & payment made via Google pay.
Please help.