[E60] NCT failed on HID bulbs in non-HID headlights ...wtf?

[crosswired]

Hi guys,
just got NCT done on my '10 E60 with everything in flying colours but headlights: got fail on HID bulbs fitted (as per NCT tester) into NON-HID headlights.
As far as i know, theres no difference between the lenses in both types of headlights and my previous 05 E60 had the same headlights fitted and passed NCT without a problem.
As a reason of that, had to book re-test and will have to pay more money to get NCT cert ....
Can i lodge official complain to NCTS or is no point to do so?

Any feedback highly appreciated

cheers
kris