Refund in gst

Hello experts. One of my client has Rs 5400 in electronic cash ledger. He has not started any business and the business is closed now. Balance in electronic ledgers is the refund of late fee paid earlier. So can he get refund of balance there in electronic cash ledger ? If yes, while filing form I have to select ‘’ Refund of excess balance in ledger’’ right ?What documents need to upload as supporting ? Kindly help me sir...