Hey locke76 Please ensure that you do not have any VPN active on your PC while making the purchase. Additionally, if one of your initial transactions is still processing and you attempt to make further transactions, this could potentially block your subsequent attempts. Some payment methods have security measures to prevent multiple transactions. In this case, you can contact your payment provider or wait a couple of days before making any further attempts.
For more information, please also see this article on our website: Troubleshooting payment issues in the EA app