Online banking

Online banking

Showing results for 
Search instead for 
Did you mean: 

Online Banking

What is a One Time Access Code?

A One Time Access Code is a code we use as an additional security measure to confirm your identity if you've forgotten your login details or are using a browser on a computer or mobile device we don't recognise.


We'll send you a One Time Access Code by text message or an automated call depending on how you’ve chosen to receive it.  No matter which option you select, you will then enter it online. This helps us make sure it's really you logging in.


The One Time Access Code is valid for 10 minutes, so if it expires you'll have to request another one. You can do it by choosing the 'resend One Time Access Code' option displayed on your screen.


If we don't have your up to date mobile and landline phone numbers we'll send you a Temporary Security Number by post. This means that you'll have to wait for the letter to arrive before you can get back online.


To make sure you can always access Online Banking it's important that you keep your mobile and landline phone numbers up to date.

Version History
Revision #
11 of 11
Last update:
‎23-05-2016 12:12 PM
Updated by:

Can you please send me a one time access code



We can't send one time access codes @Brookesn87, this needs to be done through the website.


If the contact number is incorrect then we'd need to send a temporary security number to you. If you send a message to @CET with your full name, DOB and postcode (using spaces between characters in the format: A B 1 2 3 C D / 2 7 0 5 1 9 8 7), we can post one out to you but this will take up to 5 working days. If you need instant access please call our Helpdesk team on 0345 300 3511 (24/7)


I'm going round in circles. You can't recognize my device but there is no place to request a one time access code

I'm sorry for the trouble you've had online @Davempinder. You will receive a message on screen advising your computer is unrecognised from time to time and this is due to the cookies being cleared from your web browser; this is how we recognise customer's devices. Normally when this message pops up you should be able to continue your log in by requesting a One Time Access Code to your mobile phone or landline. What would prevent you from completing this process would be part of your security being locked.

We can arrange to reset your details by sending a Temporary Security Number (TSN) in the post which will allow you to continue your log in. This can take between 3-5 business days to arrive and will be valid for 30. Alternatively, you can call our Online Helpdesk on 03453003511 anytime and request your details reset by SMS, however you must be able to complete telephone security before we can arrange this. Please get back in touch (by sending a private message to our @CET account) with your full name, DOB and postcode should you like a code by post. Alternatively, we can be contacted via Twitter on @tescobankhelp or Facebook by searching Tesco Bank. Please ensure any personal information is sent privately.

When sending your details please ensure a space is left between each character as shown below. 

A B 1 2 C D
2 0 0 7 2 0 1 7



Can you help me please.I cant logging in.

  • Your Security Number is locked and you're not using a computer we recognise. 

Can you help me with this please?Your Security Number is locked and you're not using a computer we recognise.

I'm sorry to read that you're having problems logging in @skudrazane. I can see that you've sent your details to @CET, we'll be able to look into this for you there. 


Same number new phone why won't it register? 


This system is not working currently. I sent a request for a code and then nothing, and the system has the correct numbers.

Seriously, I've got lots of other things to do than wasting time with a service that is tin pot.

Ideas please?

Hi @Alison999, I'm really sorry you’ve not received the code that you've requested. We've not been made aware of any issues at this end regarding codes not being received, have you been able to log in since your last message?