Receive credit with purchase of an iPhone SE 3 of $579 or $400 for customers on a Go5G Next or Go5G Plus plan (based upon the model and condition of your trade-in smartphone); or $300 or $150 for customers on a Go5G, TMO ONE, TMO ONE Plus, Magenta, Magenta MAX, or Magenta Plus plan (based upon the model and condition of your trade-in smartphone).