calls all the freaking time, no person on the other end tho

This group of people have been calling my cell phone for over a year after I manage to block them they will call from a few different numbers but its the same people asking for a Michael. I keep telling them they have the wrong number I block them and after the block time is up they will call again. They say they are from pharmacy in Spokane WA. One guy's name is Calvin the other is a Brian and if you yell at them enough to stop calling they will get a female to call you.

Caller calls several times per day. They said they would take my number off their call list. My number is registered with donotcall registry. I want these phone calls to stop. Thank you for your assistance.

this number keeps ringing me

got a call, i need to identify the caller

We have been called twice and when we answer they hang up. I do not want them to call us. Its a nuisance call.

Still calling my parents. Isn't there something that can be done? This is driving them crazy, the people don't even say anything when they call.