They are from India.  They are persistent,  I constantly play games with them. I find it more fun to waste their time.  Sometimes they play along, sometimes they don't.  Make them think that you are crazy.  They have your home address.  Unfortunate, but true.  Give them another address and another phone number (like Verizon's) and tell them that is where to reach you the day of service.  Other option:  cancel home phone service with Verizon and tell Verizon it is because they can't seem to stop these telemarketing lunatics.

Sick of these people calling my house. I blocked them. They still call from different numbers 4 or 5 times a day.

They use several numbers. Others include 520-201-5666 and 240-318-1508. They call day and night and will repeatedly call back every minute when I hang up on them. When I tell them not to call me any more they continue with their sales pitch. But they are not found on the internet as a legit service. Verizon told me their complaints about these guys have increased by 300 percent. Verizon told me they are calling from India and masking their calls with fake phone numbers to avoid tracing. They said it is a scam and all they want is for you to give them your credit card info so they can use it for themselves. They stopped calling me for a few days but started up again yesterday with a different number. I told them I was calling the police. "Jimmy" said, "No, Don't do that." I cursed him and hung up. He called right back and told me I was rude. I cursed him again and hung up. Haven't been called back yet. But I'm sure they will.

These people call all the freaking time.  So I answer the call, ask them to wait "while I get my wallet" and then go about my business.  After five or ten minutes, I pick up the phone and ask if they are still there and if they answer, then I ask them to hold on again.  If they are STILL on the line I pick up the phone and say that there is a police officer at our home and that they have traced the call to their call center and that they would like to speak with them.  Then they hang up.

Looks like the Cleaning Services people have another new number.  I have received calls from 6 different numbers they use over the past year or two.  It's just a scam about having your ducts cleaned, when in fact, the only thing they're gonna clean is your bank account, as in clean out!  I've blocked this number for now, but I'm sure they'll start calling from another new number in a few months.