I work for vzw and have seen this a handful of times. No rhyme or reason as to why this is. Not a competitive thing what so ever, more system glitch but it always works if it shows unl data in the plan features. 10 out of every 1000 customers this is happening for. Just roll with it and be glad it happened. I am sure the glitch will be patched soon enough but enjoy your data till the next upgrade.!