Hi Thanks to everybody for responding to my post,Sorry about writing in capitals . The roof lights are made by Seitz via Dometic but i cannot find any way of contacting them. I rang White Arches yesterday to ask them to check their new vans and they are surprised that this can happen after checking their stock which all had the same problem . Hopefully they will inform the manufacturer. My response from Bailey was not good.
I have just has a response from Bailey,some good news, they are passing on my e mail concerns to Dometic let us hope something will be done to solve the problem