This company has been harassing me for 7 months....

This company has been harassing me for 7 months. They ve been emailing me 4 times per day with emails that are clearly from an email list from which one CANNOT UNSUBSCRIBE. I just want to be left alone. I ve tried to contact the company but they won t accept my email as a business email and therefore won t accept my attempt to contact them and they appear not to have a phone number. This sort of seems to be a front for something but I can t prove that. LEAVE ME ALONE ALREADY!