Returning a call to a premium number is a classic scam. By calling back, scammers can keep you on the line even after you’ve disconnected, leaving you stuck paying the charges. If you receive a voicemail asking you to call back a premium rate number (e.g. 0845 or 0843), it's worth double checking the charges before you dial. Use the number checker to find out who owns the number and what it’ll cost to call back.