State Bank Of India [SBI] — Amount deducted through POS payment but retailer deny credit

Address: Shimla, Himachal Pradesh, 171006

I did the transaction on dated 10 march 2017 for the purchase through retailer for amount of rs 1940. My card was swiped twice but the retailer said it to be failed transaction, so i had to pay in cash. But the amount was debited both times from my account and was once reverted immediately even, but not for the second time. I did complaint to sbi portal but they are taking too long time . Kindly help

transaction details as shown in netbanking:
1. Sbipos[protected]public choice shimla
2. Sbipos[protected]public choice shimla