handover of keys

We are supposed to get our keys tomorrow. "Supposed" being the operative word because that's what the sellers promised and that's what their agent told ours. However, till now, our agent hasn't heard from him. Our agent is getting quite fed-up himself, asking us to contact the sellers direct. The sellers don't really want to talk to us though...preferring that we go through their agent, who seems to do things in his own time and convenience.

In any case, our contractor will be starting hacking on Monday morning 9am. He says with a laugh that if they are still there, they will just hack around them.