Refusing to remove my number!!!

I received a marketing call from finchoice for funeral cover, i accepted the funeral cover. This was the biggest mistake of my life. I later cancelled the policy as i was covered with my employer. I then received a call from finchoice askind to reinstate the policy so i said no as i cancelled for a reason. Ever since then i have been receiving call almost everyday from them. I told every agent to remove my number yet the calls still keep coming. I even called in and begged the agent to please remove my number and still the calls continue. I asked the agent to read the comments and it says client wants to be removed from database so i asked her why have they not removed my number she says she cant answer for back office. They keep calling and dropping the call. I dont know what i need to do for this company to just remove my number. I get calls on a sunday and everyday of the week. This is harrassment! Dont ever sign up for anything with this company or the same will happen with you!