This is designed when you want an additional SIM, not when you're looking to replace your current SIM. If you're looking to replace your current SIM you can follow this guide.
Step-by-step guide π’
Go the Honest Mobile app
Click on SIMs
Click the plus icon in the top right of the screen
Follow the onscreen instructions to order a new SIM.
If prompted, make sure to use the email address you used for your main account with us. Otherwise it will set your new SIM up in a new account.