Hi @kieraneglin there’s a fair bit of content on prepping an app for OIN here. My read through eludes to the fact that you can do some of this in the OIN Manager app when you’re submitting.
There was an email address oin@okta.com you may be able to try as well if that doesn’t work.
Sorry I couldn’t be of more use, I haven’t gone on the OIN journey myself yet!