If I was your boss, let's say roofing, and we had a 2 month project that we were working on and one day I think you showed up late because my watch was an hour ahead, and I fired you, is that ok? Is it then ok to say that if you say anything, I'll withhold all payment for previous work you've done?
No, that would not be ok, but jeremypwr admitted his mistake, apologised, and made amends by paying you for the work you had done. I will accept that he should not have told you to delete your posts, but those posts should never have been made in the first place.
A mature person would deal with this situation by PMing the following:
"Hey man. I think you've miscounted my posts for this week. Wondering if you could double check when you get a chance and let me know. I'm keen to stay a part of your campaign. Thanks."
Instead you spent half a day going on a spamming spree across multiple threads and boards. That kind of immature behaviour is enough to get you kicked from any campaign.
Additionally, your analogy is flawed because your agreement was not for 8 weeks of work. Being accepted in to a signature campaign has never been a guarantee that you would remain in it until the end.