I was travelling to the US and, while in Canada just before taking off, I turned off the mobile data on my phone, just to be sure it won't try to connect as soon as I turned the phone on in the US. I'm positive the data was off because I was not able to use it unless it was connected to the Wi-Fi. Just found out that Koodo charged me $5 for mobile data with a few 4-5 MB each day. How is that possible that even when the data was off, the phone connected and consumed data? Any ideas?