Hi shirlyboughton,
Thanks for taking the time to contact us via the Community. It's lovely having you on board with us in the Forums. ⭐
We're sorry to hear you're needing to change the delivery address. Once it's entered onto the account, we're not able to update the address I'm afraid.
You could look at cancelling things until you have moved in to the address but you would need to then set up a new account once ready.
Apologies once again.
Thanks,