All LTE Carriers have an abuse policy. These lines are unlimited but not unreasonable. Extreme heavy users can be subject to termination without warning. We advise that our customers conserve their amount of downloading and auto updates (gamers). T Mobile does not have a hard limit on data usage amounts, but we have seen accounts deactivated in the past that use over 50Gb in a day consistently. T Mobile has the right to deactivate your account at anytime.