On Mar 11, 3:40*pm, Mizter T wrote:

It's all fairly moot anyhow - I hit the cap later in the day. But it's
the principle, dammit!

I agree. Maybe it was a teething issue that's since been fixed...
without trying it again, one cannot say. (And I don't have an eligible
Railcard that'll give me the PAYG discount - I suppose that doesn't
preclude experimentation, I could buy a Day Travelcard so my travel is
legitimately covered by a valid ticket and then borrow a friend or
associate's Oyster card that's loaded with Railcard-discount and tap
it in and out on a few journeys... I could... but I'm not going to!)

Wouldn't that technically be against the T&Cs? I thought a Railcard
registered Oyster card became non-transferrable. You'd have to drag
the friend with you...

Anyway, the email exchange is getting silly. They're making things up
now:

I can confirm that you travelled from Wood Green to Kew Gardens using only
the London Underground and have been charged £2.40. Please note that this
is the correct fare for your journey. You did not use National Rail for
your journey so the discount for single National Rail journeys does not
apply to you.