Take a look at this thread - http://800notes.com/Phone.aspx/1-651-233-5192#p1244297840965539269
I have a post there about Ignore and Block and goes into some detail about things you can try. There are some scams and scammers that are especially difficult. Google SEO, student loans and Senior Care Authority//Helping Hands for example. I may have line on that last bunch, but right now it is still trial and error. They are using Robo Technology and I am slowly learning how to use that against them.
It really comes down to keeping simple records, being consistent in ignoring calls and being patient. It takes time to see big improvements, you will get fewer calls about about a month, and then it goes from there. You can post back to me in this thread. Good Luck!
Any college graduate should be able to check out this "student loan forgiveness" by simply using the internet to go to the official Department of Education website and seeing that there are only a few options. Any college graduate should also be able to fill out the paperwork involved for free if they have determined that they qualify.