Hi,
Try these steps to fix the ibis Paint Pro add-on purchase issue: first, make sure your Microsoft Store and Windows are fully updated, since outdated software can block payment verification; next, clear the Store cache by pressing Win + R, typing wsreset.exe, and pressing Enter to remove any stuck data; then confirm you’re signed in with the correct Microsoft account that matches your payment method and region, as mismatched accounts can cause payment loops; check that your card or PayPal account is active and recently used successfully, and if the bank app shows "approved" but the Store still says "awaiting," it may mean the approval isn’t being sent back, try switching payment methods or contacting your bank to confirm the transaction reached Microsoft; finally, open ibis Paint normally instead of in administrator mode, since elevated permissions can block in-app purchases.
Kind regards,