After you file

When I check the status of my payment I get this statement:

According to information that we have on file, we cannot determine your eligibility for a payment at this time.

 

This doesn't necessarily say you are not getting one.  My dilemma is do I amend my tax return and change my answer to NO someone cannot claim me as a dependent OR do I hang tight and hope the IRS looks into see who wasn't claimed as a dependent and process their stimulus check?