Good question. There are, in fact, some restrictions on renewals. For example, some CCTLD domains (Country Codes) renew in advance or have a lock-out period. Here's a way to check, go to any search engine and search:
"GoDaddy About [TLD] Domains"
Just replace the [TLD] with the domain extension you are curious about (.COM, .IT, .AU, etc...). You will get the detailed information on that extension.
I'd provide a specific link, but I can't see your account or domain(s)...and do you know how many domain extensions we offer?
If for some reason you don't find it, 24/7 Support can explain.
I hope that helps,
Thomas D. - GoDaddy | Community Moderator 24/7 support available at x.co/247support