Using my 5S as a hotspot for my laptop. Whenever I attempt to down load an itunes song, usually a 7-8 mb file, the download happens very slowly (several minutes) and by the time it's done it has consumed nearly 1G of data. It's done this twice now. I can't down load any more songs as I am already reaching my data limit after just two down loads. Nearly a gig of data should cover a whole lot more down loads than just one song. Itunes support has no answers and VZW has no answers as to why. Anybody else experience this?