Mobikwik — money deducted from bank account

Address:

Kolkata, West Bengal, 700141

On 02.02.19, i pay cesc bill rs450 via mobikwik. Money was deducted from my canara bank account, but the bill payment was faild. Mail said money refund to your account. But money did not refund to my account. How can i get my money back. & also i cannot pay any other payment via mobikwik. And also the notification and wallet option on mobikwik cannot open after the payment failed. Plese help to refun my money.