T-Mobile this week announced that any T-Mobile Simple Choice user who recruits a Sprint, AT&T or Verizon customer, both will receive unlimited LTE data for a full year at no added charge. T-Mobile will also give $10 credit per month to those users with an existing unlimited data plan.

T-Mobile CEO John Legere said: "It continues to amaze me to see the old carriers failing to listen to their customers—or reward them for their loyalty. That arrogance and indifference has defined the U.S. wireless industry for too long. We're changing all that. In fact, this entire Un-carrier consumer movement is built on the simple act of listening to customers."

The limited-time offer begins Friday, Aug. 29. Users are limited to one $10 monthly credit or unlimited LTE offer per account.

They currently offer an unlimited plan for $80 while Sprints unlimited plan is only $60.