> In order to take the signal booster, which will be free of charge, customers will need to sign a new 2-year service contract<p>The subscriber is considering leaving (they're almost able to get out of their current contract), and you're asking them to sign a 2-year service contract?<p>I predict that the response to this offer will be lower than T-Mobile hopes.
This is US T-Mobile, not UK T-Mobile, German T-Mobile, or any other T-Mobile; or at least: the article doesn't say which T-Mobile, but includes an image containing "$0.00".