Have you been receiving phone calls from unknown callers (mainly from Sierra Leone)? Well, you are not alone. These are scam calls.
The FCC advises the following:
Do not call back numbers you do not recognize, especially those appearing to originate overseas.
File a complaint with the FCC if you received these calls: fcc.gov/complaints
If you never make international calls, consider talking to your phone company about blocking outbound international calls to prevent accidental toll calls.
Check your phone bill for charges you don’t recognize.