I don’t think this is a scam. I had a similar problem and it resolved itself after time. You only need some patience. Wait and if you don’t receive the eth open a support ticket. But you should really wait some hours.
There is no reason for mew to scam people
I have no problem to wait, but why does it says that the tx has confirmations, I cannot see the pending transaction on etherscan.io .
If you look at the support message below, it doesn't include the receiving address by default. Maybe it could have been a missfunction on their exchanger software