S.O.S. .... Calling the government clowns at the "Do Not Call' line is useless. Call (or email) your Congressman every time you get one of these and tell them your tired of paying him and the telephone company for allowing this to continue. The technology is available to stop it (they, the government, are tracking everything you and I say and type) but apparently it is a large profit area for the carriers and those who get campaign donations from the carriers and their scamming business associates.
Also, got the same from occ philippines, Did leave a message,
But Look up it up on line, OCC stands for Operation Christmas Child Philippines. Looks like looking for donations. They never talk So Don't Know 100%. Best Check with BBB, Before dealing with them.