They do indeed. It is worth joining the ACO if you intend to go. You will not only be warned of impending ticket issue, but will also get discounts on tickets, camping and access to the member areas (where the food and drink are (marginally) cheaper)
Tickets cost 65 Euros for access to the Course from Wednesday to Sunday, and camping pitch for the week was circa 100 Euros. I was there as part of a big bunch though.
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