This can easily be solved by radio options on sign up form. Choose one from: a)I am interested in $100,000 if I match. b) Not in it for money but please donat

This can easily be solved by radio options on sign up form. Choose one from: a)I am interested in $100,000 if I match. b) Not in it for money but please donate $100,000 on my behalf to a charity <optional Textfield> c)I am not in this for money. If I match, I am optimistic about your recovery so please keep the $100,000 to enjoy post recovery.