Buying a Eurail Pass in London

Hi there. I am wanting to buy a Eurail pass for travel starting the next day pretty much so not enough time to buy online. I am in London so wondering if it is possible to buy at a station. Any help is most appreciated. Thank you. Simon :-)

you cannot
1.I assume youre from NZ seeing the name, but its ALWAYS wise to state nationality, as this determines the passes youre able t get.
IF you can PROVE you have stayed in the EU for > 6 month now, you qualify for INterrail, by far the better choice.
2.the UK (did you not even READ the fine print from he 12345+ pass-sites???) is NOT in the EUrail scheme and thus does not have any support. WHY did not you say to where youre going? MAIN capitals and MAIN airports (like f.e. Schiphol=Amsterdam here) CAN deliver the thing in an hour or 2 (which you need to wait for) but at INFLATED EURO-prices. ditto most main stations in Paris (NOT on sundays though)