Home Energy Improvement

I received multiple calls & blocked it but then received multiple voicemails. So I unblocked so I could answer & respond with MY message. The first person was Angel Diaz & he said he wanted to change the filter in my air conditioner. I said you are calling from Maryland & I live in New Jersey but I'm not interested. He persisted in trying to convince me. I kept saying no then said he was harrassing me & to stop calling. He still persisted so I said I was reporting him to NJ State Attorney General for harassment & NJ Better Business Bureau.  I called back to get the name of the business & a woman answered making a completely different claim. I said I wasn't interested but she gave same pitch as first guy. I told her to stop calling me & informed I was reporting her but she refused to give a business name. I am reporting them. This has been going on for a week.