They have continued to call my cell phone every day. I just picked up and no one said anything and after a few seconds it disconnected. They called my house phone yesterday so I picked up. The guy claimed to be with a company that sends out coupons free of charge and was asking for my zip code. I told him that I had already spoken with someone and told them that I was not interested. He continued to push the matter until I reiterated that I was not interested and would not be giving him any information.
The idiot keeps calling twice a day the last few days. No message. When I call them back, they don't answer, and some machine picks up saying that if you have been called by them and don't know why to leave a message. This leads me to believe that this isn't just spam, it's fraud! Mysterious phone calls in consecutive days with an even more mysterious message, who never answer when you call them back, and never leave a message when they call you!
If anyone gets called by this number, block them. This way they can't commit fraud with you and won't be able to bother/stress you out anymore.