I was recommended 4 children verbally at the inspection and this included my ds. Got confused when the certificate arrived as it said 3 but I checked and the certificates take into account your own children so you need to inform them when they reach age 5, 8 etc!
My registration process took 12 weeks in total which is their deadline here. Seemed like forever but I had my inspection as soon as they got my application. If you sent this weeks ago and have just got your inspection now, you shouldn't have as long to wait.
HTH. Good luck with it all