Unfortunately many recycling centres are run as little fiefdoms.
The booking thing is utterly ridiculous.
I could rant with stories that are echoed here, but instead will make a positive shout-out to Devon's Punch Bowl Recycling Centre!
Not only does it have magnificent views over Devon's countryside, the staff are very friendly and helpful too, it's a joy to go there. No booking either. Best best of all it has a Re-Use shop! How sensible!
https://www.devon.gov.uk/wasteandrecycling/recycling-centres/reuse-shops/
Punch Bowl is a perfect example of how good a recycling centre can be, well done DCC.
On the bigger picture, making it hard for people to dispose of waste encourages fly-tipping which to me makes no sense at all.
Proper free to use light commercial disposal should be readily available.