CPL X-Country Qualifier and proof of completion?

[Teroc]

Hi All,
Regarding the qualifier x-country 300 nm flight for your CPL.

I did an Orlando to New York flight in a cessna 172 as my qualifier. Took approx 9.5 hours each way with 2 full stops along the way for re-fuelling.....obviously I stayed overnight in New Jersey.
However I didnt and still dont have any piece of paper signed off by anyone. Ive heard people talking about this as proof you completed the flight. At the time no one mentioned that I might need it.
Do the CAA look for this when you submit your application for your CPL licence ? Has anyone else submitted their application forms without this elusive document ?

Thanks for any help.....
T.