Received notice 139(9) error 38

hello, i filled a belated return 139(4) with tax payable, forget to claim hra apparent from form16 now i received notice under sec. 139(9) to pay tax error 38 and file return whereas actually i should e getting a refund if proper hra is claimed. Only 3 days are remainig from 15 days reply time.What should i do, Any help will be useful.