How do I get a new confirmation code for Facebook Mobile?

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div class=match-mod-horizontal-padding hide-focus-ring cbphWd style=padding-right: 40px; data-kt=KjDQ7Zuw29jfsVKkmpPQ2ZaThswB0KGG_Kur666dAeHWw5Lb077nkgHj1NeCzJy4rXI data-hveid=CAwQAw data-ved=2ahUKEwj5q5ng7KrnAhXA4nMBHfmMC84Quk4oAHoECAwQAwWhy did I get a Facebook confirmation code?/div
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div class=LGOjhe data-hveid=CAwQBQspan class=ILfuVd NA6bnIf you're receiving a text messa