Booked for G test, but wasn't prompted to pay fee.

Today I booked my G test after failing my last test, but I noticed that I didn't have to pay upfront to book ahead of time like I remember doing on the website the last time I had my test. I checked again a bit later and my roadtest is still booked but I'm questioning if it's a system error and if I really got the spot. Will I get an email later about the fee or do I have to book again?