If an ATM machine does not tender money and amount gets deducted from your account then your bank or financial institution will have 5 days to sort out the issue failing which a fine of Rs 100 per day will be chargeable till the matter is sorted out. This amount will be credited in your account. RBI guidelines say that the same method will be applicable in case of micro-ATMs.
Similarly, at PoS (Point of Sale) transaction, that is, card-swiping at a shop, if the amount is deducted from your account but confirmation is not sent to the merchant (slip is not printed), the bank will have to auto-reverse the amount in 5 days. If this doesn’t happen, a fine of Rs 100 per day will be levied on the bank.
Similar method is applied for failed transaction at an e-commerce website. A failed transaction will attract a fine of Rs 100 per day beyond 5-day-window given to the bank to solve the matter.