"Logically, would it be possible for people to exchange $ 300 for 12k Euro?"

Why $300 for 12K Euro?

I say that I'll pay the person $300 who will help me to cash out MNE to BTC or any other useless altcoin which I can easily trade.

At the moment I am able to withdraw 32k MNE just need to pay eth fees of $44. I ask here because trustwallet.com It's a trusted website.