911 surcharge: T-Mobile is legally required to collect on behalf of your state and local governments.Find more information on your bill, receipt or on your state's government websites to learn more. Magenta plans and ONE Plan automatically include taxes and surcharges. One-time charge for a set amount of time gets added to your T-Mobile bill.Payment is authorized through a double opt-in process.Also referred to as Collect2Phone, activates on your account receiving a call from a correctional facility.