Child benefit have I sent the wrong birth certificate?

[Jamrolypoly88]

Sent of my child benefit form for my little boy nearly two weeks ago I didn't send the original I sent the one you can buy. Was I meant to send the original? I need my child benefit number once it's been awarded so I can claim child maintenance so I don't want this being delayed.

The one you can buy is fine, its just a copy of the entry in the register. Plenty of people (me included) have lost the originals.

You need the longer one which I think is the one you pay for