Reliance Trends — Debited my amount but they said error so I paid again till didn't got reversed amount

Address:

Guduvancherry chennai-603202

On 18th june, i have done shopping on reliance trends for 4702 and i have paid the amount through debit card, the amount got deducted from my account but the cashier said error in our mission and amount has been reversed.
so I have paid cash again and done my shopping.
But 48 hours over till now i didn't get any reversed amount RS 4702 from the reliance trends.
Please help me to get my money back.