I always block them and report spam, only the greedy and newbie fall for their tricks they imitate the main admin's name to perpetrate fraudulent act. Never respond to any suspicious help in PM.
Many scammers in telegram it is given that they really do exists so our part is never trust those people. I have experience this kind of scam in telegram convincing to transfer funds on the project that they promote. So thats true never trust and better block those scammer.