I answered and after a few seconds they hung up. I called back and heard a female recording her speech about heating and cleaning the air in my home. I transferred to a real person and "horned" him and then blocked their number.
Yup. Do you know who called so you can make some complaints? Here's some info to get you started: http://800notes.com/arts/I2neMkbUAAo/where-to-report-phone-crime