What exactly is your friend's problem? Did they get confused by "Bitcoin Cash" and "Bitcoin Core?"
Probably that. It's very confusing for people because they some times end up sending Bitcoin from an external source (could be an exchange or whatever other service) to a BCH address.Try to get your funds back from an entity that toxic. I recommend everyone to not use their wallet because it's not only deceiving, they have also proven to scam people by selling Bitcoin which later turned out to be BCH.
If you scam people once, have scammed people recently by illegally pointing hashrate that isn't theirs to another coin to nurse their ego and destabilize the market, they'll definitely scam you again.
. People can really be dumb sometimes. Even if the dev. would be a member here, I don't think he would care about helping you, he would just politely tell you to contact the site 
