eternalliving
I’m assuming your just trying to get past the schools firewall?
Just create a proxy server on your pi that’s on the schools wifi and sell the proxy details… track to usage in the proxy to make sure people aren’t passing it on, or have auth based proxy. Then you don’t need to worry about paying for a sim… at the same time.. you’ll have to learn how to get past the schools restrictions… vpn maybe? ssl-vpn to get past most vpn blockers… now you can use the already great infrastructure the school has.
All this being said, it ain’t gonna take long to get in trouble… esp if there is money involved!!