Caller says he is with the largest manufacturer of thermal labels, Buckeye Business Products. Caller ID & phone number belong to a marketing firm. Caller is very rude and pushy. I've told them in the past we are not interested. Asked caller to remove our number from his call list, he said he wasn't calling from "Dial America" and didn't have a call list. He became extra rude when I again told him we were not interested. He asked if I was the person responsible for purchasing the labels, I said "yes", he started in on a rant about how it didn't make sense that I wouldn't be interested in saving the company 30% by ordering our labels from the company he claimed to be calling from. I had to hang up on him as he became even more aggressive and hostile in his sales approach.