I've tried to check on his telegram Group. and I don't find that @CryptopreneurBrainboss advises you to use the services on that website.  But, what I found is, all you have to do is to log into your wallet ^{(your registered wallet for bounty)} using the Polygon network. You can do this by using Metamask. (guide)

You are doing good enough to not to immediately believe who sent you the message, please check the telegram username that sent your message and match it again.