Not affiliated with TransferWise in any way but just want to say that this is totally the opposite of my experience and that of pretty much everyone I know who uses TransferWise.
We've moved hundreds of thousands of dollars through them over the last couple of years with no problems on their end (we've had problems with banks failing to transfer correctly though..)
We've moved hundreds of thousands of dollars through them over the last couple of years with no problems on their end (we've had problems with banks failing to transfer correctly though..)