I never did manage to join! I can't remember what it was but I found it very frustrating navigating their site to join up. Might try again on the ipad rather than the ancient laptop. It might, after all, solve our winter route problem through France
Geoff, stayed at Roque Sur Ceze Camping Car Park yesterday ,turns out you can exit and enter as many times as you like within the 24HR (or more) period that you have paid for , however there is no guarantee that your space will still be vacant when you return.