I have collected a few different UPromise promo codes to try when you sign up for a new UPromise account:

MILITARY30 -50 dollar bonus
Gortons5 – 5 dollar bonus. This one worked for me today.
KC3 – 6 or 8 dollar code
Chocolate3 – 3 dollars from nestle

If you have any more, post em here! Also, let me know if some of these don’t work, and I will remove them.