I feel like sueing them to be honest as I have a lawyer in my family, but it's basically wasted time due to the fact I could do better stuff in that time and I don't get much from YouTube anyway.
I wouldn't sue them for the CPM, but moreso for extending my contract to a static one for a year, whilst I have said multiple times that I want to leave that ignorant network @ support in the period when you could leave at any time with a delay of 1 month, but they basically neglected all my well written e-mails regarding that and just extended it. Shows how childish they are.