If for any reason you do not have any of these documents, we recommend that you:
Contact your bank and ask them to post out your latest statements for proof of address purposes.
Please note, you cannot submit your bank statement as both Proof of Bank (POB) and Proof of Address (POA).
Contact HMRC and ask them to post out a letter with your National Insurance Number.
You can complete form CA5403 via the HMRC website.