https://community.o2.co.uk/t5/Tech-Support/Six-digit-authentification-codes-not-received/m-p/1812288#M57991 <P><a href="https://community.o2.co.uk/t5/user/viewprofilepage/user-id/5852619">@PhilM66</a>&nbsp;</P><P>Not uncommon.</P><P class="">This is a customer to customer community, not O2, so we cannot access your account, sorry.</P><P class="">You need to contact O2.</P><P class=""><SPAN class="">Message them on Social Media. Facebook (<A href="https://o2uk.co/O2CFB" target="_blank" rel="noopener"><SPAN class="">https://o2uk.co/O2CFB</SPAN></A>) or Instagram (<A href="https://o2uk.co/O2CIG" target="_blank" rel="noopener"><SPAN class="">https://o2uk.co/O2CIG</SPAN></A>)&nbsp;</SPAN> or give them a call on 202 or 0344 809 0202 (contract) 4445 or 0344 8090222 (PAYG)</P><P class=""><LI-PRODUCT title="Guide: Text Message Tips (not sent or received)" id="Guide028"></LI-PRODUCT>&nbsp;</P> Thu, 25 Sep 2025 17:11:13 GMT MI5 2025-09-25T17:11:13Z https://community.o2.co.uk/t5/Tech-Support/Six-digit-authentification-codes-not-received/m-p/1812285#M57990 <P>When I sign into Apps like the NHS, a procedure to check my device is triggered. I'm supposed to receive a six digit code on my phone number and use that to progress to the next stage of access, but it doesn't appear. The same thing happens with other Apps. The number they have for me is the correct one. Any experience of this?</P> Thu, 25 Sep 2025 16:12:58 GMT https://community.o2.co.uk/t5/Tech-Support/Six-digit-authentification-codes-not-received/m-p/1812285#M57990 PhilM66 2025-09-25T16:12:58Z https://community.o2.co.uk/t5/Tech-Support/Six-digit-authentification-codes-not-received/m-p/1812288#M57991 <P><a href="https://community.o2.co.uk/t5/user/viewprofilepage/user-id/5852619">@PhilM66</a>&nbsp;</P><P>Not uncommon.</P><P class="">This is a customer to customer community, not O2, so we cannot access your account, sorry.</P><P class="">You need to contact O2.</P><P class=""><SPAN class="">Message them on Social Media. Facebook (<A href="https://o2uk.co/O2CFB" target="_blank" rel="noopener"><SPAN class="">https://o2uk.co/O2CFB</SPAN></A>) or Instagram (<A href="https://o2uk.co/O2CIG" target="_blank" rel="noopener"><SPAN class="">https://o2uk.co/O2CIG</SPAN></A>)&nbsp;</SPAN> or give them a call on 202 or 0344 809 0202 (contract) 4445 or 0344 8090222 (PAYG)</P><P class=""><LI-PRODUCT title="Guide: Text Message Tips (not sent or received)" id="Guide028"></LI-PRODUCT>&nbsp;</P> Thu, 25 Sep 2025 17:11:13 GMT https://community.o2.co.uk/t5/Tech-Support/Six-digit-authentification-codes-not-received/m-p/1812288#M57991 MI5 2025-09-25T17:11:13Z