Called but didn't leave a message.

Payment Systems - This company keeps calling our place of business and telling me they are sending out an agent to go over a card reader to we can start taking credit cards. We are not in the business of nor will we be taking credit cards. I have told them to stop calling many times. Now they are calling with my business address and said someone will be here. I'm tired of them pestering me.

Calls throughout the day on all of our business lines.  Asks for the owner of the company, or co-owner.  Then hangs up if/when you say they are not in.