That's why I'd suggest you get everything in writing.
If you agree to the money back exchange or that provision is stipulated in the contract (blech!), then you'd be better served getting written approval at varying intervals to proceed.
You finish up the tour and send it to him. He agrees and likes it. So you get something in writing from him saying that he's given the go-ahead to proceed with the design.
Finish the first tour page? Send it off to him and get approval to proceed. Next page? Again. Join page? Again.
It may seem a bit tedious but it best serves both you and the client in that it removes a great deal of misunderstanding and confusion, CYOA, and ensures they're cool with what's going on at every step.

But with regards to your current client with whom your having problems? Might be best to just do whatever it is you have to do so as to ensure your not having to deal with em anymore.