Knickerbocker EU review for Moloni ON

We signed up for Moloni ON because of its Shopify integration, but we can’t get it connected. The setup requires a Redirect URI that isn’t covered in their instructions. Support suggested using our store URL, but we still get an “Invalid API client” error. The most frustrating part is that support keeps telling us to contact the app developer, Webinfor, which is the company behind Moloni ON. We’re being sent back and forth asking for information needed to connect their own app. Now we’re paying for a subscription we can’t use for the reason we bought it.