Simply fill out the pertinent info to the left, you may use google to find the losing RespOrg Id. if you cannot find it, you may skip it, BUT it may cause delays in your (or your) clients port.
CUSTOMER BILLING INFO
Be sure to have the correct customer billing info, including all correct passwords to their account.
LOA & LATEST BILL
LOA & Latest Bill, a copy of the Latest Bill is required to port numbers.