And the only solution you might have is to contact telegram support team if there.is any to contact. And the dexscreener you are saying that they are lot of sellers testimonies, most of those testimonies are the same scammers group to make people believe that they legit and probably the dexscreener is recommended by them in the telegram group.
I think Telegram is not a social media but no doubt that many scammers are lurking there, so we must be careful dealing with someone on this app. I don't think Telegram team can help with this issue because the case is not directly related to them but maybe there are crypto experts who still can do something with it. I lately seeing this dexscreener in the forum, so I'm thinking that it was the latest shill here? HHmm...