Does anyone know how I can get a response and be informed about my transaction? What is wrong with the transaction?

sorry I want to ask I have purchased a presale at isusgo for 30 usdt on 27.05.2025. but I have not received the coin until now I have tried to contact @ISUSGO but there is no response really disappointing please @ISUSGO give me an answer what is wrong with my transaction. why have I never been responded #research #isusgo #helpmeplease #HelpingHands