Indian Bank — transaction done through swiping machine but amount didn't get credited to them, but it's deducted from my account.

On 11.12.2018, around by afternoon i swiped my card two times at a hotel as 300 and 300.. It came as transaction pending and now my account is been deducted with 600... It has become 48 hours and still yet my money isn't been refunded. Make sure that my money is refunded as earlier as possible..
Card holder name : g. Akshaiya
Ac no : [protected]
Ifsc code : idib000k027