San Francisco, California - Twitter isn't interested in the drama rollercoaster that Elon Musk is on, and has issued a not-so-veiled threat to the richest man in the world.

In a Securities and Exchange Commission filing, Twitter stated that it will stick to the buyout deal, and included a pretty direct promise to make Musk pay.

Either he has to cough up the dough to buy Twitter's stock from other shareholders, or pay a $1-billion penalty for backing out of the agreement.

The SEC filing included a recommendation to Twitter shareholders, urging them to vote in favor of the buyout. Their vote is the last main step before Musk officially owns the company.

But Twitter also made it very clear that it will make sure the deal goes through, and if it doesn't, the company will do what it takes to make Musk keep his end of the deal.

That could include taking the billionaire to court and making him buy the company, or force him to pay the penalty fee.

If Elon Musk is trying to get out of buying Twitter, the company has made it clear that it isn't going to play along.