Who called from 2402009694

I need to call this number from south africa but dont know how.
[email protected]

I got a call in germany. I didn't answer that call, it's expensive to recive calls from another countries. The caller didn't leave a message on my mailbox. So, I don't know who is calling me and why he/she does have my phonenumber..???

Got a call and apparently a voice mail from this number today, Sunday, November 16th, 2014, at 9:25am.

Voice mail is by an automated female voice, saying "Your verification number is 198679" three times.

I'm not calling back to find out what I need to verify with that number...

I got the same automated female voice as "343" also telling me my verification number.  Did not respond.

Could it be the whatsapp call to install whatsapp if the message function didnt work.