It is possible that an "ICO is already associated" error message appears when you associate ICO with your user account. This may be due to one of the following cases:
When is ICO already associated with another account ?
Case 1 - You purchased a second-hand ICO
If you know the former user, ask them to delete their ICO account directly on their ICO app.
Case 2 - You purchased a new ICO
There may have been a problem printing the label. Please enter the UUID (identification number on the label inside the box) manually. If the problem persists, contact the Ondilo customer support.