First, check that all sections of your Stripe authorisation form have been completed and allow 2–3 working days for Stripe to review your submission.
Our guide will give you common reasons for this: https://donate.giveasyoulive.com/blog/what-to-do-if-your-charity-stripe-account-is-restricted
If you're having trouble, please contact our charity team, and we'll be happy to help investigate.