just to clarify; Our product: A was a direct competitor to the other product: B. We tried to purchase domain: C - without any luck, we could not get in touch

just to clarify; Our product: A was a direct competitor to the other product: B. We tried to purchase domain: C - without any luck, we could not get in touch with the owner since he did not reply to the publicly listed email address. B's owner(our competitor) purchased domain C from it's owner; B was better at location contact-information I guess. So suddenly domain C contained logo, image, and redirect to product B; and that was when we complained. We had no intention(or right) to complain when domain C was still in use by its original owner.