It’s easy! If you’re an existing customer, visit MyT-, a retail store, or call Customer Care to activate. If you are a new customer, simply visit a T-Mobile store, go to T- or call 1-800-TMobile. We’re covering the cost of one Netflix Standard subscription per T-Mobile ONE family account. You will be given a URL to link your T-Mobile account with your Netflix account. T-Mobile pays Netflix directly for you. For existing Netflix customers, it may take 1-2 Netflix billing cycles for your billing to transfer to T-Mobile.