TLDR: After entering your country, type your postcode to select your address from a list. If not listed, choose "Enter it manually" to input your address. You can then review your entered details.
Entering your address
After entering your current country, you'll then need to enter your address.
To search for your address, please select the box on screen and then type in your postcode. You'll then see a list of addresses matching that postcode. Please select your address from the list.
If your address is not shown, please select 'Enter it manually.' You can then type in your address instead of searching for it.
Once you have entered your country and address, you'll be given the option to review this. You can read more here about this stage.