I used the subway in Toronto, underground there is no cellular service. Every time I came above ground, I had mass amounts of my data dissapearing, I have 5gb's per month and my bill reset on the 11th. Just coming above ground used 600mbs+. This happened numerous times throughout the day. Average I use 174.86mbs/day. I recieved my 50% and 90% within two hours of eachother. Has anyone else experienced this issue. I now have 200mbs to do until the 11th of August.