I believe depending on the type of phone you have you need to go into your notification settings and disabled the messaging app notification so you do not receive any more text message notifications. I believe you can also uninstall the messaging apps that send you the text messages. However this might not be possible because of the presidential alerts that are mandatory that we receive in the event of a national emergency. Nevertheless you should still be able to turn off the notification settings so at least general texts don't come to your phone. You can also contact your carrier they should be able to give you more instructions and help you.
Call store and ask them
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