I have no idea but i got a call from this number as well and I answered and they just hung up. Whatever you do don't call them back. It is a scam and they want people to ring them back.. I looked up the number on the internet to see if it was a company, if it is someone who you know they will cal you back don't bother calling these numbers you don't know.

Who's calling us at all times of the day? We wanna know

this is a wine related survey number. They should only call if they have your permission, you have to read the small print on everything remember!