ASDA:
Our stores accept most major payment methods including:
Cash
Credit and Debit cards (Mastercard, Delta, Maestro, Visa Electron, Solo and American Express)
Asda Gift Cards (for more information visit our Asda Gift Cards site)
Asda credit card cashback vouchers (visit the cashback vouchers FAQ for more information)
Apple Pay, Google Pay and Samsung Pay
Valid coupons and vouchers (i.e. Healthy Start and Luncheon)
Pre-paid cards (i.e. Azure payment card)
Travellers' cheques, Sterling cheques and Euro cheques.
http://asda-stores.custhelp.com/app/answers/detail_grow/a_id/1890/~/payment-methods
Feel free to ignore this good news until somebody reputable posts it