Life in UK Test Proof of ID and Proof of postcode

[iqkhanuk]

ALL,

I am looking to book life in Uk test,

I am confused what to take for proof of ID and proof of post code.

Do I need to carry 2 different document.

My understanding is

1- Biometric permit valid till 2018
2- Bank letter

Do I need anything else.

[CR001]

https://www.gov.uk/life-in-the-uk-test/ ... in-uk-test

Bank statement is fine too.