Annoying and repetitious, block this number and more come through from different extensions

Hey call every day from similar number and I am on the do not call list
Very annoying

Caller: Somec*nt

Rude guy phoned me, I asked what does he want or trying to sell. He is a slow f*ckwit, so I tell him to f*ckoff. He calls me back telling me to f*ckoff. Waste of oxygen

Have had hundreds of calls all start with music long pause than foreign speaker, have blocked just get call from new number next day.

a different extension calls me every day!