This is why you should never rely on a third party platform for your business. They can change their terms of service or just decide not to do business with you any more and you are screwed if you are reliant on anything other than your own platform. Go ahead and use Twitter and Facebook to promote your business, but do not use them as your primary outlet. Any business you get from those sources should be immediately shifted into your own ecosystem. Buy advertising there if you feel you must, but use it for free as much as possible. In other words, use them and take advantage of the free stuff, but never, ever, rely on them for your business.
“In other words, use them and take advantage of the free stuff, but never, ever, rely on them for your business.”
Old saying: If they are big enough to make you, they are big enough to break you. Many companies found that out when trying to do business with Walmart. Bezos is administering this lesson to some in the Amazon Marketplace. Card transaction processing services has also been an area of leverage.