On 11 Apr 2006 12:59:41 -0700, "MIG"
wrote:

Therefore, the barrier that you were trying to get through with your
season was the LU exit barrier.

I realise this isn't answering your question, but it's background
information.

Well in retrospect that make some sort of sense I suppose... in which
case, why was I allowed through with a London Stations only ST? I
suppose it's a case of flash a Gold Card and they just let you
through... but the guy had a reasonably good look at the ticket. If
he'd told me that it was a Tube barrier and my ST wasn't valid, I'd
have realised I needed to use the Oyster.