Elon Musk has confirmed the removal of legacy Blue badges on Twitter.Twitter Blue is now available in 15 global markets, including India, and charges users Rs 650 per month for verification.Twitter Blue subscribers in the US are now able to create long tweets of up to 4,000 characters and see 50% fewer ads.Twitter has told businesses they must pay $1,000 per month to retain gold badges, or they will lose their checkmarks.