During the 2-day period of 16th - 17th July thousands of Estonian mobile clients received a call from a Madagascar number: +261229600191. Those who missed the call and called back at that number were charged 1,63 € per minute.

Elisa, the operator discovering the spam, advises to not to answer the calls from unknown foreign numbers or return any of such missed calls. 

You are all welcome to report your experiences regarding it.