On 11/11/2010 23:01, Mizter T wrote:

Basically, an OEP kinda makes your Travelcard on Oyster prostitute
itself as if it were a mere PAYG card (...ok, I've gone too far now! You
started it though ;-).

An OEP effectively turns your Oyster into a PAYG one until such time as
the OEP is cleared, albeit one that credits the entry charge back if you
stay within your zones.

So, for example, here's the (online) version of the last journey I
undertook using an OEP:

02/10/10 13:52 Bus PAYG enabled £0.00 £9.80 [1]
02/10/10 13:56 Marylebone [National Rail] Entry -£3.30 £6.50 [2]
02/10/10 14:17 South Ruislip Exit £2.00 £8.50 [3]
02/10/10 14:18 South Ruislip Exit £0.00 £8.50 [4]

[1] Not sure where the "Bus" bit comes from, given I set the OEP on one
of the Shere Self-Service Ticket Machines at Marylebone.

[2] I've got an Annual 1 to 4 Travelcard and Gold Card discount loaded
onto said Oyster, but I can't work out why this is £3.30 instead of the
usual £4.20.

[3] Validator in subway

[4] Ticket gates

Cheers,

Barry