Data always disappearing

<p>I bought a wifi ****le package in September last year. I get 40 gigs a month. The first 3 months was phenomenal I never ever reached my data cap through the entire month, since February all of a sudden data is finished by the 2nd week. How is it possible that there would be more than enough data that I didn't even get to use all of it to all of a sudden only lasting 2 weeks. I use the ****le exactly the same nothing has changed. </p> <p> </p> <p> </p> <p> </p>