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What is a Temporary Security Number and when do I use it?

A Temporary Security Number is a code we use as an additional security measure to confirm your identity if:

 

  • you're registering for Online Banking for the first time

 

  • you've forgotten your login details

 

  • you're using a browser on a computer or mobile device we don't recognise and we don't have your up to date mobile phone number.

 

We'll send the Temporary Security Number to you by text message, if we have your up to date mobile phone number. If we don't, we'll send it by post and you'll have to wait for it to arrive before you can log in to Online Banking.

 

When you receive your Temporary Security Number return to the Registration or Login screen. You'll be asked to enter the Temporary Security Number in full to complete registration or reset your login details.

 

Your Temporary Security Number is valid for 30 days from the date it was requested and can only be used once. If it expires, you'll need to contact us to get a new one.

Version History
Revision #
4 of 5
Last update:
‎28-04-2015 11:47 AM
Updated by:
 
Contributors
Comments
jnsealey

Hi, I am locked out of my Tesco online Credit Card service - can you please advise what i need to do to reset my security number

Hi @jinsealey, can you please follow the instructions I’ve posted above so we can arrange for this to be sent to you?

zebedeeboing68

Pls send a temporary security number. Thankyou.

Hi @zebedeeboing68 I'm sorry to hear that you're not able to access your account. 

 

So we can help you regain access, please click @CET and then at the top right there is a green button that says 'Send Message'. You can send us your DOB and postcode and we can send you a temporary security number in the post. Please ensure all personal details are sent with a space between each of the characters – L I K E T H I S.

 

You also have the option to contact us on our Twitter or Facebook pages to arrange this. Alternatively you can request this via text message buy giving our team a call on 0345 300 3511 (24/7) should you not find this page suitable. I hope this helps.

bluebare

this process just sends you round in circles and is insane. I believe I need a TSN please send 1

Hi bluebare, to rectify this we can send you a Temporary Security Number (TSN) through the post which will reset your online banking and allow you to get logged in again. This can take between 3-5 business days to arrive and will be valid for 30 days – if you would like me to arrange this for you, please send a private message to @CET with your full name, DOB and postcode. Alternatively, you can call our Online Helpdesk anytime on 0345 300 3511 and request a TSN to be sent by text immediately once security is completed. Please note that when sending personal details here they must be sent in the same format as shown below.

A B 1 2 C D

1 6 0 3 2 0 1 8

Staffodian65

Can You Please send me a code to acess online banking. I have a new phone, thenks

Staffodian65

@Nick_Fwrote:

A Temporary Security Number is a code we use as an additional security measure to confirm your identity if:

 

  • you're registering for Online Banking for the first time

 

  • you've forgotten your login details

 

  • you're using a browser on a computer or mobile device we don't recognise and we don't have your up to date mobile phone number.

 

We'll send the Temporary Security Number to you by text message, if we have your up to date mobile phone number. If we don't, we'll send it by post and you'll have to wait for it to arrive before you can log in to Online Banking.

 

When you receive your Temporary Security Number return to the Registration or Login screen. You'll be asked to enter the Temporary Security Number in full to complete registration or reset your login details.

 

Your Temporary Security Number is valid for 30 days from the date it was requested and can only be used once. If it expires, you'll need to contact us to get a new one.


I have got a new mobile phone and cant access a one time code. Could you please post me one please

Hi @Staffodian65, if you follow the steps in Ross' message above, we can help :-)

Staffodian65

It is the one off code I require. I have a new mobile so can't receive text to verify log in thanks