Thank you Karfa and CWS for your responses, much appreciated! Where can I find the BA rules for the lounges on their website since my search wasn't so fruitfull. I have already seen the lounge acces guidelines topic but I'd like to see it on their website so I can show it to the staff incase they start to argue anyhow hehe, lets hope talking dutch is a bit of an advantage there..

My flight is in 6 months so the work near the lounge should be finished by then

Best regards