I'm in the UK. I booked my
test using Prometric's website (which is extremely irritating). I turned up for my test today, fairly highly strung with nerves, and the college has not been registered with Prometric for 8 weeks! They stopped doing Prometric tests because of all the admin mess-ups. I was the 2nd candidate to turn up today! So, don't use the website, and maybe phone the actual college to check up too.