Mobikwik — recharge on airtel

I have recharged my airtel sim no. [protected] with rupees 399 on 17 march 2019. But is is not recharged yet by using this app and my sbi account has been debited by 399 rupees. My transaction has been completed through[protected]zaak epayment services. There is seven days completed and there is no refund of my recharged payment. So plz solve my issue immediately.