ToxicBunny
Oi! Leave me out of this...
I understand you're busy. Good that your wife will do something. I hope that the person she'll be phoning is the seller, not the agent.
In the spirit of many people learning from your process:
I wonder whether there is any law or contractual clause which binds the buyer and the seller to communicate through the agent only.
I very much doubt there is a law.. there may be some contractual clauses, but I doubt that they would be enforceable.