I finally solved this problem! I read another blog that Wish.com does this when you are using a coupon (which I was). I solved it by doing two things--and I'm not sure which one was the actual solution. First I typed a 0 in the promo code box, which as I expected, gave me a "not valid" message. (Cool thing is, it still gave me the previous promo code discount.) Then I started over and clicked on "edit" next to my shipping address. I corrected minor errors (lower cased name of my street and last name). After that I went back through PayPal and my order went right through. I hope this helps!
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