You can't always trust the campground web site (or Reserve America) either. Earlier this year we stayed at a Kentucky State Park, a Wednesday through Sunday. The web site said 50 amp service.
We got there OK, but there was only 1 post, shared between 2 campsites, arranged very odd. The post had a 20, 30, and 50 amp plug-in. We took the 50 amp.
Friday night, campers came in the other site and insisted they had the 50 amp plug and we should move ours. We contacted management to have them settle it. Management decided the other site got the 50 amp and we had to take the 30 amp. What could we do? We switched, and then said we wanted a refund on our campsite as we were going to go ahead an leave, and we pressed the issue.
Funny though, the State Park manager guy intervened and offered us a move, no extra charge if we were willing to take it. They had sites open in the horseman's campground, all 50 amp with water and sewage at each site. We drove over, took a look, and said, OK. The sites were all pull through, huge, and full hook-up as he said. We broke camp and took the spot.
Oh yea, there were some horses there, but I'd rather smell the horse **** than the **** from those people who came in Friday night. As I told my wife, we either leave the State Park completely, or take the other spot. The ill feelings we had about those Friday night arrivals had already stained our experience. It was best we move.
We also complained highly to the campground to get the Reserve America posting for those two campsites fixed. He told us (then, after everything was settled, we moved, and all was done) that they had addressed the issue with Reserve America as we were not the first campers there that had the same problem and not the first campers they ended up moving to the Horsemans Campground as an alternative.