This is an accepted solution.
Ted here from Shopify, thanks for posting your query.
If you've received an email from our Shopify Payments team in regards to your account, I'd recommend following the steps they've mentioned in the email. If they've advised you to submit further documentation in regards to your account, you should be able to do so within the admin. If they've advised you that they've deemed your store "too high a risk" or similar, then this means that your application for Shopify Payments has not been successful and you will need to choose a different gateway to accept your payments.
Our general support can't see the review in full, so the best thing to do would be to contact the Shopify Payments or Risk department back for more info. If you need to choose a different gateway, then this guide should help. If you would like to share the support ticket number you received, I'd be happy to double-check this for you as well.