Hi Reita ! this is Berna from T-Mobile, I’m happy to help take care of your concern changing your mobile number.

If you don't mind me asking, May I know the reason for changing the mobile number?
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I wanna make sure I can at least give you the complete advisements before we proceed with changes that you are requesting. Please be advised of the following:

Each mobile number change generates a $15 processing fee.

You'll receive a free text message with the new mobile number. Once received, please turn your phone off, then back on and Mobile number changes are completed within 2 to 4 hours.

Your voicemail box will be deleted and all old messages will be lost, so make sure to save voicemails you wish to keep.

You must set up your voicemail greeting and password again. The voicemail password will be reset to the last four digits of the new phone number

If you have a My T-Mobile account, you don't need to re-register. Your existing password works with the new mobile number.

Call records for the old phone number will no longer be available on My T-Mobile.

Wait 72 hours after the mobile number change before accessing My T-Mobile with the new number.

Do you agree with this?

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Before we proceed, We just want too set a proper expectation there will be $15 fee for for the mobile number change. Do you want to proceed?

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