Write a caption for card company, win cash

Our latest BCG Pro opportunity has over £500 in cash prizes available for funny birthday card captions (plus you earn royalties on top, for any cards sold). Submit your caption via the link below :-)

https://www.comedy.co.uk/pro/opportunities/thortful/

However old you may be today, you're still doing better than the tree that made this card. - Tiggy

I'm not a member of BSE Pro so I can't enter.

Is it just one entry to this? Hate picking which of my many ideas might make others laugh.