For second-hand vendors
Make device checks part of a careful handover.
Check the physical device
Read its actual identifiers. Search each IMEI separately and choose the appropriate manufacturer and category for serials.
Keep your inspection
A registry result does not replace purchase evidence, functional tests or account and management checks.
If there is a warning
Resolve it with the seller before buying. Contact the owner using an approved report’s details where appropriate. Do not confront anyone or publish accusations.