Very sorry for not being able to post this sooner. Work, school and life overtook the last few days.
I tried to have the GC refunded, but they won't do it. As far as going any lower than 90, I'm kind of hm-hah'ing that. They do have some things I would find useful, and while the money for the pump is even more useful, a twenty dollar hit hurts. Give me a bit to think on it, but I am open to it.
As far as a link for the discount, as I see it, you just enter the Gift card number into a spot on checkout. I don't think there is anything more secure about it.
Give me an hour or two to think about your offer, Mikey, and I'll post back in a just a bit.