You're welcome, glad I could help :)
Hmm, if the alarm was going off with no key in the ignition (so when you unlock the car) then I'd say it's down to the drivers door lock as it was on my a6. However if it's happening when the key is on the second setting then I'd argue it's a programing issue.
I'm assuming you've already changed the fob batteries?
Cheers
Steve