Elon Musk said Friday that Twitter plans to relaunch its premium service that will offer different colored check marks to accounts next week, in a fresh move to revamp the service after a previous attempt backfired. It’s the latest change to the social media platform that the billionaire Tesla CEO bought last month for $44 billion, coming a day after Musk said he would grant “amnesty” for suspended accounts and causing yet more uncertainty for users. [time-brightcove not-tgx=”true”] Twitter previously suspended the premium service, which under Musk granted blue-check labels to anyone paying $8 a month, because of a wave of imposter accounts.