Not sure if Nationwide, called into local Tescos (Batley) for something quick & easy (& not too expensive) to cook for Tea. Went to the family meal deal section & picked up a Carbonara Pasta Bake £5.00, pack of 8 Garlic Bread Slices £1.40 & a Cherry Pie £2.25. This should have gone hrough till after discounts at just £5.00. When checking receipt after purchase @ self serve it did not discount so went to Customer Service desk who confirmed mistake & refunded double the amount overcharged (policy) - £7.30 !!!!!! So a quick family meal for just £1.35. This may be a problem & work nationwide.