Key Broken in locking fuel cap!

Hello all and Happy new year!
Key snapped off in fuel cap this morning and running low on doozal! Have searched similiar threads but to no avail..
Before I just get angry and destroy the thing....anybody had expirence in drilling out the barrel or snapping it off? dont want anything to drop into the tank! piccy attached of the type of cap http://www.ebay.co.uk/itm/121034230677?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2648
thanks in advance..

just found this thread so will try....

http://www.landyzone.co.uk/lz/f7/help-key-just-broke-fuel-cap-93896.html

all sorted thanks

Was just going to signpost that one

Glad you're sorted