There's no shipping address field to find. Wishpicks doesn't store an address on a wish, a wishlist, or your profile, so there's nothing to fill in. You arrange delivery privately with the gifter instead.
Nothing's broken or missing. Wishpicks helps people pick the right gift. It isn't a shop and doesn't handle shipping, so it never asks for an address, postal code, recipient name, or phone number.
Why there's no field
Reserving a gift just marks that someone plans to get it. The gifter buys it at the store and arranges delivery directly with you, so Wishpicks has no reason to collect your address. There's a second reason too: a wishlist set to Anyone with the link can be opened by anyone who has the link, and a home address doesn't belong on something that can be shared that widely.
What to do instead
Leave a short, neutral hint on the relevant wish, like "Message me for delivery details." See Where should I write delivery information?.
Share your real address through a private channel you trust, like text, chat, or email, with the one person sending the gift.
Keep your address off any note or field that ends up back on the wishlist.
Worth knowing
The country setting on your profile is only a 2-letter country code for pricing and region. It's not a delivery address and isn't shown to gifters.
Don't rely on the gifter's reservation note to pass details back and forth. It stays hidden from you to protect the surprise.
For a safe way to coordinate, read How to safely share delivery details.