Who called from 2018436464

This is Myron, www.myron.com, they offer promotional pens, pocket calendars, holiday cards, etc. If you got a pen or similar from them with your company name on it, they'll keep calling forever.

Have had numerous calls from this number, they ask for our company pres by name, but when asked as to who is calling they hang up.

Just got one from this number as well. The person left a message with no words but coughed and hacked and then was silent for close to 1 1/2 minutes. Strange. No reason to be getting a call from this company.

Called three times this evening:
1st time 9:26 pm  
2nd time 9:59pm
3rd time 10:15pm
each time answering machine and the fax machine were activated

Called twice already - No idea how they got my number? Anyone got calls from them lately?