Airtel — mobile recharge through airtel app

Address:

Harohalli, Ramanagara, Karnataka, 562112

Prepaid airtel recharge done through airtel app with net banking sbi. Amount 398 rupees deducted by account but currency not come to mobile. On august 15/2019. So called to airtel customer care number so from their representatives informed me amount will be refund to respect account with in seven days but till today 26/08/2019 not at all received the amount to my account. So please the do the needful as soon as possible