The new owner of the social networking platform issued the warning after some celebrities changed their Twitter display names – not their account names – to “Elon Musk” in reaction to the billionaire’s decision to offer verified accounts to all users for $8 . Comedian Kathy Griffin suspended her account on Sunday for changing her display name to Musk’s. Actress Valerie Bertinelli did the same before changing it to her real name. But first, he posted a series of tweets in support of the Democratic candidates. Comedian Sarah Silverman also appeared to have her account locked as she shared a screenshot of her Twitter page with the display name “Sarah K Silverman”. Musk said Twitter had previously warned before the suspension, but as the social media giant deploys extensive verification, there will be no warning and “no exceptions.” “This will be clearly identified as a requirement for signing up for Twitter Blue,” Musk said, adding that any name change would cause a temporary loss of the verified checkpoint. Twitter on Saturday updated its app on Apple’s App Store to start charging $8 for the coveted blue checkmarks, in Musk’s first major overhaul of the social media platform. Tesla Inc boss Musk, who will also serve as Twitter’s chief executive, said last month that the social media platform would form a content oversight board with a “broadly diverse viewpoint”. “No major content decision or account recovery will be made prior to the convening of this board,” he added. On the subject of banned accounts, Musk said last week that they would not be allowed back on Twitter until the social media platform had “a clear process to do so.” Establishing such a process would take at least a few more weeks, Musk wrote on Twitter, giving more clarity on the potential return of Twitter’s most famously banned user, former US President Donald Trump. Read more: Elon Musk blames activists for falling revenue as he closes all Twitter offices and layoffs begin Nine celebrities who may leave the site for good after Elon Musk buyout The new timeline suggests Trump won’t be back in time for the Nov. 8 midterm elections. Earlier Sunday, the New York Times reported that Twitter is delaying the rollout of verification checkmarks to subscribers of its new service until Tuesday’s midterm elections.