You gave money like I did, to Bernie Sanders campaign with the expectation that the Democratic National Committee would play fair, and by their own rules.
They Did Not! A Class action lawsuit was filed in US District Court Northern District of New York on June 6th:

Tim Hunter vs. Debbie Wasserman Schultz, DNC Chairperson And The Democratic National Committee, a.k.a The DNC

We the undersigned want to join in on this $100 Million dollar class action law suit.

We want:
1: For the DNC to acknowledge their bias for Hillary Clinton
2: An independent accounting of all funds raised by the DNC for Hillary Clinton
3: Either a complete refund to ALL Sanders contributors, or have that figure given to Bernie Sanders to use as his campaign wishes.

Furthermore, this must be accomplished before the Democratic National Convention on July 25, 2016

If you contributed money, and wish to join this class action, please sign this petition.

Peace, Justice and Love,
Tim

 here is the link to the whole complaint:
http://www.timhuntermusic.com/tim-hunter-vs.-debbie---the-dnc-1.html