Stop replying to the scammer and do not send anything more, whatever they threaten or promise. Then call your bank or mobile-money provider straight away. Ask them to freeze affected accounts or cards, attempt to recall or trace the transfer, and give you a reference number for the case. Minutes matter: the faster the report, the better the chance the funds can be stopped before they are moved on.
Change the passwords for any account the scammer touched, starting with banking and email. Turn on two-step verification where it was off. If your OTPs were intercepted or your phone lost service unexpectedly, contact your mobile operator to check for a SIM swap. If a social media account was taken over, recover it through the platform and warn your contacts from another channel so they are not scammed in your name.
Save everything: screenshots of chats, the numbers and accounts used, receipts, and transaction references. These details are what lets investigators connect cases and stop the scammer. Report the scam here so the indicators can be reviewed and made searchable for others, and report to the police if you lost money. Finally, be alert for follow-up 'money recovery' scams: anyone who contacts you promising to get your money back for a fee is another scammer.
Use the report form if you saw a suspicious number, account, link, or handle.
Run a safety check before you send money, share a code, or trust a message.