I have been with Sprint Data plan for several years. It was a unlimited data plan.
I renewed my commitment in January with a 3G4G Overdrive unit, but was assured my plan would stay the same since I was "grandfathered" in. I had to replace the unit 3 times in a 6 month period. The last time it was replaced in July, they changed my plan from unlimited to a 5G cap, creating a $500. overage charge.
They told me that Sprint has the right to change the plan anytime they wish, even in the middle of a 2 year commitment(contract). This is so under-handed, and I'm also stuck with a connection card that cost me $149.
that cannot be used with any other service. Don't Trust Sprint for ANYTHING.