You could try sitting your mother down, and calmly say this; Mom, I appreciate your generosity in allowing me to use your internet until now, however, by restricting my access to it you are forcefully ejecting me from a still growing world wide community of a technology embracing peoples. I understand that I play a small role in the community, however it is founded around the ideal that any person, no matter their origins, can end up playing a grander role then one can imagine.