The app said I was approved for 1000 dollars thru rapid refund, but I just got an email stating I wasn't approved

[Lea25]

It will only tell you the pre approved amount. Then it gives you a bunch of information about what it goes through.  You don’t get an official answer until after the IRS accepts your taxes. So the pre approval doesn’t guarantee final approval. 

[EbonyL122824]

 First Century Bank NA will send you an email explaining why you weren’t eligible for the Refund Advance.

If you didn't pre-qualify for Refund Advance, it may be because:

• Your federal refund was not $500 or more.
• You did not agree to all the Refund Advance terms and conditions.
• You owed the U.S. Government or your State.
• You had debt enforced by a State such as, but not limited to, child support obligations, past student loans, tax liens, and any other payments owed to a Federal or State agency.
• You did not pass the lender’s final evaluation. Subject to review of third-party information.

https://ttlc.intuit.com/community/refunds/help/about-the-refund-advance-application-process/00/25557