Hey, thanks for reaching out. Sorry to hear about these issues.
From what I understand, OGA’s having a few issues getting through Gmail’s spam filters and is currently struggling to reliably send out registration emails. Some folks recommend having a backup email address to receive confirmation, for now.
There are a few alternative options. You could append the sprites to your submission itself so that they appear as downloadable files. You could also share them over at the Discord channel in the meantime. Or you could ask someone to submit them on your behalf. With the last option, OGA would still have a link to your itch profile/linktree/whatever else you would like while being able to see the submission. The obvious downside is that you haven’t submitted them yourself, though the moderation staff can always rectify that issue later on when the account goes through.
Do any of these options sound good? I don’t want anyone to miss out due to internet shenanigans, so we’ll make sure something works in the end!