Calls every other day from this number. they are very rude people and when you push back at them, they swear and hang up. You'd think they'd get the hint and stop calling!!
This is standard operating procedure for these criminals. They don't want anything less than total and unconditional docile cooperation from their targets---and anything less sends them into a profane-laden frenzy. Don't engage them. Just hang up and block the calls (if you have that capability).