Open your Profile to access your personal settings:
By clicking or tapping on the pencil next to Address, you can change your address.
Click/tap Save to confirm or Cancel if you don't want to save the change.
If you want to change your address from the iPad then go to Profile --> Account --> Address and press Edit near Address section.
Change details of your address and Save.
You can enter any text you like but please make sure your apartment number is correct!