yup - just call FAO 136150, tell them you're about to register your child in day care and need for them to make your child CCB (child care benefit) current. given that the provider didn't offer you a provider number, it sounds like they are on the new system, so nothing there that you need to link, just get your kidlet ccb current

you'll be asked to confirm yours and your partners income estimate at the time, so have that info handy. you can also ask to register for centrelink online services so that you can print out statements, view your payment details etc online.

it's only about a five minute call - but my understanding is that they're still pretty busy, so may take you a while to get through. make sure you have a cuppa ready and relax while you wait!