This organization has been calling twice a day for the past three weeks. I finally answered the phone today. They tried to sell me duct cleaning and a furnace tune-up for $59. They tried to schedule me for next week. I let them keep talking then told them I owned and HVAC company and didn't need them. They apologized and thanked me. Received another call less than 1 hour later. When I answered the call it was a dead line. They never mentioned their name.
I've been getting several calls from them a week. CID always indicates "Cleaning Service." I never pick up and they never leave a message....but it is very annoying. I'm also on the Do Not Call list...for what it's worth...and in this case it's not worth anything at all.
Same here - calling all times during the day - never leaving a message...using multiple phones numbers. I just reports to the Do Not Call Registry as my number is on there.