life in the UK number

[loiclm]

Hello,

I am applying for british citizenship and in the application form AN, I am asked to provide the life in the UK "test number". On my pass notification letter, there is no mention of a "test number" but on top of the page there is a "Test Instance ID". Is it the same thing ? If no, where can I find this test number?

Thanks,
Loic

[Casa]

"Test Instance ID". This one.

[loiclm]

thanks