Calls to sell light bulbs - at least once a week. Will not stop and wants $$$ to stop calling.

says his name is brad.   needs to talk to ( makes up a name) then if u tell him there is no one with that name then he will say just transfer me over to your maintenance dept i need to talk to them about some electrical part they ordered and he  says he  needs to pick it up and bring it by our office. we have not ordered any parts from him and as far as i can tell he is not even in our STATE.  YOU CANNOT GET HIM OFF THE PHONE,  I HANG UP ON HIM AND HE STILLS CALLS BACK !!
he does this about once a month.

Called saying he was with a lighting company and pulled the usual I need to talk to your maintenance person followed by asking what our maintenance mans name was, I gave a fake name so that I will know who he is when he calls asking for someone who doesn't work here. He proceeded to ask for his cell. Told him if he wanted to talk to him then he would just have to call here and maybe get ahold of him.