Matthew Spaccarelli won an $850 judgement against AT&T in a California small-claims court in late February when the court found that it wasn't fair for AT&T to slow down data speeds under his iPhone's unlimited data plan. Spaccarelli had argued that he was being throttled after using 1.5GB to 2GB of data in one billing cycle—well within the 3GB tiered plan AT&T currently offers to customers for the same price ($30 per month) as the now-defunct unlimited plan.

Now, according to the Associated Press, AT&T has sent a letter to Spaccarelli demanding that he participate in settlement talks or his phone service may be shut down. Spaccarelli posted the documents online—something AT&T's letter specifically asks him not to do—in hopes that his case emboldens others like him to follow suit. "Looks like #att is threatening to cut off my service if I don't sign a confidentiality agreement to talk about settling. I thought I won!!" Spaccarelli posted to Twitter on Tuesday. In another tweet, he directed users to PublikDemand "to get help with small claims court against AT&T."