Lack of support in recovering my profile as an existing vendor (multivendor admin app)

Is your feature request related to a problem? Please describe.
As an existing vendor I'm always frustrated when I could not find my profile using email ID or restaurant name. There is no information how I can recover my profile and I am forced to create my profile again.

Describe the solution you'd like
Provide error message explaining the error and recommend ways to recover the error.

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.

Start by tracing how the multivendor admin app searches for vendor profiles by email or restaurant name and how profile recovery currently works. Clarify the expected recovery path and error states with the maintainers; done should mean an existing vendor can recover the profile, with an error message that explains the problem and recommends next steps.

Written by the indexing model from the issue text.