Problem: The client was unable to purchase translation credits due to a message stating 'There are no websites registered on your account' despite having registered the site. Solution: We recommended the client to register the site with a new key without needing to reinstall or reconfigure WPML. This involves going to Plugins -> Add new -> Commercial tab -> Remove the actual key and generate a new one. If the problem persists, we suggested escalating the issue by providing access credentials securely for further investigation by our second-tier support.
If this solution does not resolve your issue, or if it seems outdated or irrelevant to your case, please visit our known issues page and check if there's a permanent fix available. Ensure you have the latest versions of themes and plugins installed. If the problem continues, we highly recommend opening a new support ticket here.