Esim installation gone wrong!

[AnnieM1]

OK, I changed my plan to a pay monthly sim only deal on the Internet, I was offered an esim which I accepted, as soon as I'd accepted the deal my original sim turned off! I went to install the esim but it needs to send a code to my phone which is not working as the sim has been deactivated, so I can't receive the code. I'm just going round in circles. Can anyone help please? 

[jonsie]

You need to contact customer service

We’re just customers like you but it sounds like you’ll need someone to access your account which can’t be done from here. If you message O2 using the links below, they should be able to help you with this
or give them a call on 202 or 0344 809 0202

Guide: How to find help & contact O2 

[MI5]

@AnnieM1 

Go in store with photo ID but it's best advised to stick with a plastic sim, which you can also get in store.