If it was in the >$6000/BCH range, you were scammed... If it was in the >$200/BCH range you were misleaded but not scammed in the strict sense of the word...
Looking at this transaction, I think he is not fooled, he just confuses BTC and BCHYou should be able to get your coins back using Electron Cash. It's a fork of Electrum which works with the Bitcoin Cash blockchain.
It would be great if you could guide in more detail 
Although I'm not in this case, I don't know how to get it back if I have the same problem, I think he doesn't know how to do it either