Who called from 2028005536

I've had 10 calls from them in the psat 2 days :/

WTF ????

only today 6 call........

This company have been calling me everyday for the past 2 weeks the Times I have answered they just hang up. On Wednesday they called me 18 times!
I keep trying to answer so I can tell them to take me off their system but they just hang up.
This is turning into harassment I don't really know what to do about it.

Thank you for your time

called 5 times in one day, and never again