How to get a new iPhone 13 with the monthly payments

Hi there,

I am looking to get a new iPhone 13 with the monthly payments. I have an appointment at apple tomorrow but want to know everything I need in order to do so. I am with Sprint my dad is the provider. Do I just need his sprint information? Will my SIM card go into the new iPhone. I have an iPhone XR I want to trade it in. Is there a down payment for anything?

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