Its either a side scam or a gimmick to get you to call the number. No answer when I tried calling.
888-505-6698
http://www.nomorobo.com/lookup/888-505-6698
Number belongs to:
http://www.limelightenergy.com (Solar energy)
https://www.facebook.com/LimelightEnergy
18444 N 25th Ave Ste 420, Phoenix, AZ 85023 (virtual office)
Closed on weekends, so its possibly a lead generator.