My telco provider blocks all anonymous calls, forcing caller ID to be enabled before the call is routed to my phone. I have a Panasonic 6.0 Plus phone system on my line which allows me to block any numbers I want.
These idiots began calling me about a week ago. I answered the first call, no one there. I answered the second call, no one there. So into the block list they went. I look at my caller logs and see they called me 4 times today. What they get when they call is a "number disconnected" tone, followed by a hangup. This should deter them from calling what appears to be a disconnected line. I am listed on donotcall.gov, and report every infraction listed in my call report.
Anyway, I don't presently, nor ever had any relationship with Macys.
I have found the best way to deal with these sorts of idiots and all telemarketers is to take technical countermeasures against them. With my shields up, I am rarely bothered by these clowns, and in the rare times I am, it will only happen once if that many times.
1) block all anonymous and blocked calls
2) install a call blocker with a black list to deal with those spammers who are stupid enough to release their caller ID and get in.