Please check your > ME < contact card in Apple Contacts app. Make sure addresses are labeled correctly. You’ll need to also check and edit, if necessary, addresses at the paths below.
OK, check these three locations please;
Each card also has an address associated with the account. Please follow this path;
iPhone > Settings > Apple ID (Your Name at top of screen) > Payment & Shipping > tap card to edit > tap Billing address > tap edit (upper right corner of screen) edit necessary changes
iPhone > Settings > Apple ID (Your Name at top of screen) > Payment & Shipping > Shipping Address (edit or delete address
iPhone > Settings > Wallet & Apple Pay > Transaction Defaults (scroll down) > Shipping Address > Edit (upper right corner of screen) > either Enter New Shipping Address, add new address or edit/delete addresses