For two months in a row my BlackBerry z30 shows that I used 20 Megs of data overnight when the month rolls over two my new month. In my case this occurs on the eighth of the month. My phone on both occasions is in sleep mode at home charging and hooked up to wifi. With the phones own utilities it shows only a few kilo bytes not 20 Megs. I called when this first happened and they basically said I must have done it somehow so I let it go but now this is twice so the problem is on koodo's end as I have done nothing to cause this exact amount of a data charge while I'm asleep on the eighth of the month.