I'm using Cburst. I thought that once they confirmed payment on Paypal they were returned to my store and a thank you for your order page was shown not another button to confirm payment (that used to be on Paypal Express). The sign in was on apple iphone, using Safari No there weren't 2 browser windows open, I tapped the button once and after being transferred to paypal entering my details and authorising payment, the message “returning you to the seller’s website to complete the purch