Finally got a voicemail from this number. They called and left a couple of voicemails before but never said what company they were with. Family member had just died so I thought they were calling to do with the estate and I tried having the executor call them back with our lawyers info. Turns out they're for a credit card I completely forgot about! Nice to finally know who they are though, been getting weird phone calls with no messages or people on other end, the messages I eventually got never said who they worked for, etc.
I would suggest answering when they call and trying to see if you can catch another person on the other end, not paying bills can get pretty serious! Sucks that they don't leave messages or tell you who they are until the last minute.
Call several times a day, but I dont answer numbers that I'm not familiar with. They finally leave a message on their last call of the day, which is usually around 20:00 EST, however the person does not have a good command of the Queen's English. Arabic or Indian. Can't understand anything they are saying and they are talking extremely fast. I figure if it was a legitimate or professional business, they would use proper phone etiquette.
I've told the callers to cease the harassed calls to my job and I have always blocked all their numbers but they still continue to call me by changing the last 4 digits. I work for the federal government.