Visa card payment system is suffering a widespread outage across Europe, millions of users were unable to make payments using their cards. Visa confirmed the widespread problems but did not provide any details on the cause. MasterCard and Amex services were rerouting some transactions via Visas IT network. Major retailers confirmed that users were not able to pay with their cards, such as Marks & Spencer and M&S. Visa and major banks informed their customers also through social media, while major retailers confirmed the problems.”]
Source: https://securityaffairs.co/wordpress/73121/security/visa-payments-down.html