FCC No Call Dept. a joke

I am on the No Call list of the FCC and still get junk calls. If one makes a complaint on the FCC site, all you get is a letter or email months letter saying you didn't give enough info to begin with, so they can do nothing. But the catch 22 is that they don't ask for the missing info when you make the complaint. Who is going to remember which junk call it was when they don't even give you the details of the complaint you made back then? What a total waste of money and another instance of government dysfunction