references on offer of interview - is that OK or are they still trying it on?

[BrowneIssue]

Agent calls back "sorry to say, inteview cancelled because of <insert crap excuse here>" <click> <dial tone>

Agent never calls back and does not return calls.

[KentPhilip]

Suppose they call up and your name mentioned. Ex-Client might not be happy. Then you want to go back there......

Most gigs will give verbal references : but hate fishing expeditions.

I don't think it would be a problem if you have got permission from person to give reference.
I see your point but I think its a bit tight to go quite that far.