I picked up the phone today and called this phone number, and it answers as Verday Energy USA.  They are telemarketing energy.  If you are on the Federal Do Not Call list, then you need to file a complaint with them against Verday Energy.  Their website claims they are a member of the Better Business Bureau, but when I checked the BBB's website, they do not have a report on this company.  Here is Verday Energy's contact information:  http://www.lowcostpower.com/contact.html

Verday energy, trying to get a supplier switch. No message left. You can call back the number and opt out of future calls with the automated system.

Keeps calling repeatedly, but phone only rings once or twice, I pick up, and no one is there.  Frustrating !