Open your Profile to access your personal settings:
Go to the personal tab.
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 the 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!