Bypass tethering limit ?

Hello all, just wondering if there is a way to bypass the 2GB tethering limit set by three. I work away alot and use kodi on my rooted nexus 7. I used to have no problems tethered to my LG G3. But now somehow they can tell when I'm tethering even though I'm using the same browser. Is there a way to trick them into thinking I'm using my unlimited phone data when tethered? Cheers