HI,
When we stayed at a campsite last year, with English hosts, they told us that with Camping Cheques they only got paid at the end of the season, and that the figure they got was under £9-00 per cheque. They had joined ACSI, where they make an up front payment, to be included in the directory, but retain all the amount you pay them on site.
We have used ACSI since we started 3 years ago, and it works extremely well, the directory is worth the joining fee, particularly when planning a route in advance.
Regards
George