This is a scam, rude people calling trying to get information and access to company business info.  Said he was from company called LCM (Lighting Maint. Specialist) and when I told him there was not a "Maintenance Dept", he'd have to deal with me, get got upset and hung up.

The person that called from this number was the rudest jerk I have talked to in a long time. He would not listen. I put him on hold and then he called back on another line giving someone else the 'pleasure' of talking to him. When she hung up, as instructed by the owner, he called back one more time, continuing to be rude. The owner finally talked to him and whoever this was did not call back again (yet). The funniest thing is, on the phone ID it said 'customer service' with the phone number. WHAT a laugh.