Does it make a difference which name you use on their marriage certificate? How do they check? Our celebrant didn't check any ID or anything.
I think it can take up to 2 weeks for the marriage to be registered with BDM, then you can apply for the certificate straight away (go in person to BDM or apply by post). So you should be able to get your certificate within 3 weeks. It does differ state to state though so it might be different, depending where you're located.
I didnt think they did ask for any id or anything but i wasn't sure tbh...if i can just use my new name with 'officially' changing it i will as i don't want to be running around for no reason!