Probably with all of those apps/companies that have people constantly searching/refreshing!
My theory runs out halfway through next year and there are 0 bookable tests anywhere in my county
wish I had the money to spend to get other people to look for tests for me but it's not feasible!
I've been learning on and off for 3 years (cos covid, and uni away from home) and been ready for my test for months but people who have only been learning a couple of months but have money always get priority cos they can afford to buy it!