In reply to GraMc:
I have been with them for a few years, but couldn't get camper insurance until last year as our conversion didn't meet the new government regs for registration, Brentacre changed their policy and allow you to have camper insurance without it being re registered (I think it has to be at least registered as a van with windows) Our policy also states a maximum of 90 days in all the paperwork, but there is a code which is listed to make it camper cover which gives a year, you still have to notify them of the dates when you go abroad. I had to phone them and arrange the cover as it's not clear on any paperwork I could find, it doesn't have anything to do with Brexit according to them.