Centi-billionaire Elon Musk provoked Twitter and challenged the company’s CEO Parag Agrawal to a “public debate” about fake accounts and spam in the midst of a contentious legal battle over a $44 billion acquisition.

Musk filed a bid with the Securities and Exchange to acquire Twitter back in April this year. After the companies agreed to move ahead with a take-private deal, Musk said he was terminating his acquisition, and accused Twitter of presenting false numbers, including in its SEC filings, pertaining to the amount of monetizable daily active users, and the number of spam and bot accounts on the social network.

Twitter then sued Musk in a Delaware chancery court to ensure the deal would go through as promised, and Musk filed counterclaims and a countersuit there on July 29.

In a series of tweets that Musk began posting just before 1 a.m. on Saturday, Aug. 6, Musk interacted with a fan who had summarized his accusations about Twitter including that it was stonewalling him and giving him, “outdated data,” and “a fake data set” when he asked the company for details about how it tabulates mDAU, and estimates for spam and bot accounts.