Let's pick one specific lesson that won't work for you on cell data and we'll try it on cell data over here.
Just paste a URL that you know won't work into a support ticket here:
http://www.guitartricks.com/contact.php
If you could create the support ticket using your phone on cell data, that might give us extra info to diagnose.
We'll try it on our end and see how what we can learn.
Jon