@TheGirlWhoSaidKnow Howdy and welcome aboard! You should be all set, sorry for the issues with getting your account confirmed -- not sure what the culprit was but hopefully its resolved. 🙂
@TheGirlWhoSaidKnow Hmm, and its the official Mastodon iOS app? You might try one of the alternatives -- folks like Metatext (https://apps.apple.com/us/app/metatext/id1523996615) as a good free option. If you don't mind spending some money, Toot! (https://apps.apple.com/us/app/toot/id1229021451) is really great as well.
If you like the Mastodon app, I'd try deleting it and reinstalling it -- might be as simple as that!