So many good comments and experiences here most of which we agree with except the child support one
We too recently had the same experience with the AZ State Park system. We were making a late long weekend reservation but couldn't make it work online. The 800 number lady was able to make it work because she had us move several times over our 4 night stay. The online system still wanted to have us pay the $5.00 use fee for each spot because it saw it as a new reservation each time we moved but she was finally able to override it.
We spent some time in the office trying to glean tips and tricks. They just advised making the reservation a year out. Also, if needed, moving a reservation to another time period versus cancelling as then you don't lose your reservation fee.
They said many people cancel last minute. Many people forget they made a reservation. If there is a no show the staff tries to reach the intended campers by phone or email but if they can't reach them nothing happens and the spot stays vacant because it's paid for.
As already said it's only going to get worse.
Millennials that have given up on sticks and bricks and just need internet. Boomers retiring, snowbirds, regular campers, rv shows on TV etc.
They clearly are not developing RV parks (State Parks, COE, BLM etc) as fast as they are selling RV's.
I'm not sure of this but I wonder what the stats are on tent sales and renting tent spots. We still do run into new tenters but seem to run into more ex tenters who are now rvers as we get older.
Seems we're all very vying for the same piece of the pie or puzzle.
While we understand that reservations over the phone take up a long amount of time and a very patient employee. The online systems can be frustrating and inflexible. We don't want to resort to using a service that games the system for you.