Damien is in Ireland. The alarm is not standard in Irish GTI's.
@Damien I read elsewhere, think it was boards.ie, that one guy badgered his dealer & VW and they agreed to spec the alarm without keyless. So if I were you I'd badger your dealer and ask them to contact VW Ireland about it. VW Irl are actually pretty accommodating that way.
As for keyless - it's brilliant. Wouldn't have a car without it. The naysayers either haven't tried it or were too tight to spec it.