Probably why no one used whatsapp in the US. I think we pay lots more over here than you lot too. Phone contracts are ridiculously expensive. Until about 5 years ago we had nothing like the mobile penetration Europe has. (I've only had smart phone 3 years... Several of my co-workers still have flipphones)
I always use my data, using it right now. Have company wifi but not allowed to connect to it apart from company property like laptops and phones
Do you have to be on wifi to do it? Did you get the photo of the girls? You're welcome to post it for the lads