This is a scam related to immigration.
Immigration Scam Alert!
Summary — +447493994640
Expert Opinion
Picture this: a unsolicited call from an unknown number claiming urgent immigration issues, designed to panic you into sharing personal details. Such tactics are hallmarks of scam operations targeting vulnerable individuals with false promises or threats regarding visas and residency. Evidence from reports labels this as a classic immigration fraud attempt, often using spoofed UK numbers to seem legitimate. Stay vigilant—never disclose sensitive information like passport numbers or bank details over the phone. Instead, hang up immediately and verify any claims directly with official sources, such as the Home Office website or by calling known government lines. If you've engaged, monitor your accounts closely and report to Action Fraud to help curb these nuisances.