I will rephrase...
Is it legal for him to cut the wires on our phone system? The phone system is ours and he was hired to run the wires from this system into my offices. He cut the wires on the system and NOT the wires he installed. So is this legal?
We had our phone system installed into our new offices and unfortunately the payment didn't clear the bank. The question is: Can the installer come to my office and cut the wires on my phone system that I own? He did not cut the wires he installed, he cut the wires on my phone system itself...