Steps7
- Tap Returns.
- Tap Exchange.
- Find the bill.
- Under Coming back, pick the items.
- Under Taking instead, search and add the new items.
- Check who owes the difference.
- Tap Complete exchange.

If it stops you
Nothing on this bill can be returned any more: the return time is over.
Exchange needs the shop admin: ask your shop admin.
Still stuck?
In the app, tap ? on the screen you are on and ask in your own words. Or email support@kowntx.com. A person replies in writing. Never send your PIN, code or card number.