On 7 Feb, 16:41, "Peter Smyth" wrote:

Looks like there are still some anomalies when going from one side of
London to the other.

CDR West Drayton - Brentwood 14.60

Zone 1-6 Off Peak Travelcard 7.50
CDR Boundary Zone 6 - Brentwood 3.50 (Total 11.00)

Out-boundary travelcard from Brentwood - 12.50

Peter Smyth

It isn't only Travelcard add ons that are anomalous. Try this:
Hertford East to Southampton Airport, is shown as £43.80 off peak
standard class return on both thetrainline.com and nationalrail.co.uk,
but ask the booking clerk at Hertford East for the cheapest return
fare and it comes out at only £38.00, purchasable on day of travel
too!

In other words, rather than buying this ticket online from
thetrainline.com you can save yourself £5.80 (about 13.25%) by getting
it at the station - and since you've got to go there anyway to get the
train it's not taking you out of your way.

There's a nasty smell of ripoff here methinks.