Don't delete your account to change your email. Your Split Pay account and routing numbers are tied to your identity, and they're permanently linked to the email and sign-in method you used when you signed up — you can only access them through that original email and sign-in method.
To get into your Split Pay app, log in using the original method you used when you signed up (Google, Apple, or email/password) and the original email tied to that account. Your account is still there.
If your email has been compromised, contact support — we have a way to help you regain access safely.