PayPal had recently announced on its blog that it’s outfitting 15 new U.S. brick and mortar retailers to use its offline payment and shopping solutions. The stores include Abercrombie & Fitch, Advance Auto Parts, Aéropostale, American Eagle Outfitters, Barnes & Noble, Foot Locker, Guitar Center, Jamba Juice, JC Penney, Jos. A. Bank Clothiers, Nine West, Office Depot, Rooms To Go, Tiger Direct and Toys “R” Us. Now four more major stores have been added to the program in the UK.

The High Street retail stores include Coast, Oasis, Warehouse and Karen Millen. Transactions are processed via a smartphone app that generates a barcode and a transaction number, which is then scanned to draw funds from a customer’s PayPal account. And, a mobile or Wifi signal isn’t needed to process the payment. Here is a clip of the system in action at an Oasis location:

Jon Bishop, Innovation Comms Manager at PayPal UK, states, “Safety and security are at the heart of everything PayPal does and this is no different when it comes to mobile payments. You unlock the application with a unique PIN number, and no personal or financial information, or money, is stored on your phone.”

The service will launch on May 31st and will be available in 230 stores.