First wait a while and check your payment history in the application — failed transactions often revert automatically. Do not make a duplicate payment immediately, or you may be charged twice. If the fee still shows unpaid after the bank’s settlement time, try a different mode like net banking, UPI or debit card. Keep the transaction reference number safe. If money was debited but the fee shows unpaid, raise a grievance with the bank reference through the SSC helpdesk.