These jerks call me several times a week and this has been going on for years. I never answer but finally I thought I'd try to get off their list. As soon as I told a "representative" politely that I was not interested and to take me off their list, she hung up on me. So much for being civil and polite. I hope that karma catches up to those pieces of slime. The sad thing is that I was put on hold for about five minutes before I could talk to one of these creeps so there must be lots of people falling for this crap.
Another call from the "Consumer credit services" [***] heads. As I listened in, there's a 5 second gap of silence then at the end it's the weird sounding voice saying "Goodbye". Caller ID same as the phone number