Run out of Wi-Fi data.

Wi-Fi data disappear, even during Wi-Fi being switch off - I noticed that my Telkom data, disappear lately, decided to switch off my router, during working hours, and at night, boy oh boy, when I check my data up to 4gig missing, last week Wednesday, I look and a total of 8gig available, I then switch off my Wi-Fi, and Friday night I run out of data #WIN