True, we don't know that, but we don't have to know it. Perhaps the "owner" is suffering from hemorrhoids and is too uncomfortable to call. But what business do you know about that doesn't have someone that can deal with a customer who is very inconvenienced, even when the owner is indisposed? It is pretty clear at the least that the OP has not made it to the top of the stack.
I know nothing about the law involved, only the psychology and I think it is clear that OP has lost control of the situation and also that this is not ideal.
I gave and give no legal advice, only advice is to attempt to re-seize the initiative. That can't be bad, IMO. Waiting for incoming is never optimal, if you have any other options and it appears that he does.
On rethinking, maybe it doesn't matter. Be interesting to see.
Ha