How many phone calls / email does one send to be deemed trustworthy? And on top of that, considering I make ‘phone calls’ via signal, FaceTime (audio) and othe

How many phone calls / email does one send to be deemed trustworthy? And on top of that, considering I make ‘phone calls’ via signal, FaceTime (audio) and other apps, on top of the standard dialer, and for email use Zoho, inbox, gmail and the standard client, how does it even come up with these numbers? I have to assume they’re looking for extremely high usage, robo dialers or spam outfits using iPhones. But is there any evidence this is happening? It also sounds like it’s somehow connected to Apple Pay, but why would someone using their device for spam purposes have or setup Apple Pay? Surely if you’re using your device to robo dial / spam, it’s one of many devices sitting in a rack / pseudo data centre. Not a personal device. This all sounds very very strange.