T-Mobile brings back its iconic referral discount, but there’s a catch

TL;DR Existing T-Mobile subscribers can now share a 10% lifetime voice line discount with friends and family directly through the T-Life app.

Unlike traditional 20% Insider Codes that required employee connections, this 10% discount is available through the general customer base and stacks with standard phone trade-in or Keep & Switch offers.

To qualify, switchers must port in a number from a competitor (like AT&T or Verizon) within 14 days of checkout.

T-Mobile is rolling out a new referral perk that lets existing subscribers give friends and family a 10% discount on all voice lines for the life of their new account. The carrier has frequently revamped its ecosystem lately, whether rolling out new T-Mobile perks to keep users engaged or testing value plays like its Super Essentials Saver Walmart plan, and this latest initiative takes direct inspiration from its long-running, coveted employee “Insider Codes,” though it arrives with half the usual discount.

According to a report from The Mobile …