Last time with the Kiwi offer I never got a confirmation from MyPoint when I submitted my receipt. I have repeated the submission and contacted MyPoint but never got a reply either. So I returned the products.
It worked several months ago on Glade or something, but did not work on Kiwi. So I am not eager to do the Pledge deal, especially with the huge devaluation of UA miles. I would redeem GC from now on.