I just tried ordering a sweatshirt with it and went though the Mastercard verification fine but then about 20 minutes later I received an email from Amazon saying: “We’re having trouble authorising your payment method for your Prime Try Before You Buy order. Please verify or update your payment method within 5 days. If we can’t authorise your payment method by Monday, May 29, your order will be cancelled.”
I tried submitting it again but then i received this email from Amazon: “Before shipping your Prime Try Before You Buy order, we’ll ask your bank to authorise the full value of your order, £30.05. While authorising your card, your bank will temporarily* make this money unavailable to you.”
At this point I just cancelled and purchased the item outright.