I’ve had the same problem and have contacted support almost 2 weeks ago. I’ve never had a problem before but now it’s not working. I was about to post on here to see if any one can help.
Which gift card option? Pay with ibotta requires a debit card to be linked to Ibotta no credit cards and no discover cards. Cashing out to a gift card requires you to have a minimum of $20 in your account and sometimes those gift cards deplete. Let's says you want a 20 burger king card it might not be available it happens.