Transferwise started off being positive about Bitcoin, but they have to protect their banking relationships and that's far more important to them than a dribble of BTC business. Bitcoin causes them, or rather many of their banks, too many potential regulatory head aches to touch.

I've never heard of a legit business, and Transferwise certainly is one, keeping anyone's money. They'll return it to you. Keep contacting them and if they stay silent then get a lawyer on to it.

Before you do that though hit them up on Twitter. Companies are usually much more responsive on there.