Mobikwik — refund of fraud transactions

Address:

560093

On 1st may 2019 someone used my sbi credit card details to load money in his/her mobikwik wallet. The fraudster did two transactions of 9999 rs each so total 19998 rs. On the same day i checked my email for these transactions and informed mobikwik customer care. But they have not given me any refund yet. I also sent them all the document proofs that i have on [protected]@mobikwik.com

Please investigate this and help me to get refund in my card back.
Amandeep singh consumer of india