I had to verify just like you guys did. I'm not sure what's going on, but I ordered something else without the gift cards and I didn't have to verify. Must just be with the cards.
This happened tonight with my mom's account. She just got on the churning train to save for our joint trip in Oct, so I was letting her use my $1650 in Target cards to churn so that she can get in on this 5x promo before the quarter ends (my account is maxed anyway). We did one order of $750 and then went to do another but it kept having us verify. Also, the GCs themselves were having issues, as half the time it would say "we can't apply this GC to your order". I finally got fed up and told her to go home and try there since that computer is the primary one associated with her account. How many times did you guys have to verify before your order went through? I verified twice through texts and had another three times where I could't get the GCs to stick. If we can't get it to go, do we call eBay or paypal? Also, are the eBay cards that we tried to use now "stuck" to her account even though the orders didn't go through?