The London tips article is wrong about paper tickets

rubuhoeikanaika

I hate to say it, and I know it's a minor case, but the tips for London article says this:

Never buy a paper ticket !!!8211; Oyster or contactless is cheaper. Unless you're coming in and out of London on the same day !!!8211; in which case you'd get a National Rail day travelcard !!!8211; paper tickets cost more. Paper tickets for a single journey on the tube cost an eye-watering £4.90 (and are no longer valid on the bus), while a single trip on an Oyster card in Zone 1 is £2.40.

What's more, use Oyster or contactless and what you'll pay in a day is capped. Paper day travelcards can be almost double the Oyster daily price cap.

This is incorrect if you have a network railcard. A zones 1-6 off-peak day travelcard is £8.40 with a network railcard. The corresponding fare cap doesn't get the railcard discount, and so is £12.50