Indian Bank — wrong debit

Address:

Chennai, Tamil Nadu

I have gone to lifestyle retail store situated in phoenix market city chennai on 19th january 2018 and purchase a top worth 505/-. The first time i gave my card for payment and money of 505/- got deducted from my account and the card was declined. Second time i gave my card i was able to make the payement and another 505/- got deducted again.
It has been 29 days and i have not yet recieved the refund. Please refund my money