Dear Sir/ Madam
I’m writing to you about some misunderstandings on my device. Recently, I have purchased IPhone 13 Pro Max from USA with T-mobile SIM card. But, now I am on the trip and I am going to change my SIM card into local one. But, other SIM card is not working on my device now, I consider that T-mobile has to unlock my phone.
Thanks in advance
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For.you device to be eligible for a SIM unlock from T-Mobile. You must be a current T-Mobile USA customer, you must be the original owner of the device, and your device and T-Mobile account must meet all of the SIM Unlock Policy requirements.
https://www.t-mobile.com/responsibility/consumer-info/policies/sim-unlock-policy
Also if you had bought an Android you could do a temporary unlock but Apple doesn't offer that feature.
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