They've been calling back to back everyday at least three times a day. They call we don't answer and then two minutes later they call back and then about five minutes later they call back again...I finally just blocked their number with my new Panasonic home landline system. Blocks up to 250 numbers...I think I've used about 20% of it's capacity. I hope Panasonic develops a phone system that has a larger block-calling memory, because at this rate I will fill it to full capacity in a matter of weeks not months, but weeks....this phone system is the best investment I ever made, hands-down.
I'm going to try blocking with our phone too. Thanks for the tip. We didn't answer, but the answering system picked up a staticy recording of a man saying "smart...lightbulb."