Very rude and suspicious caller... only ID himself as "Cory from Scottsdale AZ"

Person called from the 623-236-9231 asking for someone in the house, when I questioned who was calling, they only told me Cory from Scottsdale AZ and again asked for the person. When I asked what  company they avoided the question and asked for the person again. Not until they figured out I was a parent did they quickly hang up. Very suspicious.

EFG Websolutions is the name I was given.  I believe they are using more than one #.