Please note that the certificate registry updates every 2-3days. In that case, you mentioned that you completed your certification by today, so please wait for 2-3 more days. Then again check the [Denodo Professional Certification Registry](https://certification.denodo.com/validation).
After checking the registry 2-3 days later, if it does not appears. I kindly recommend you to write an email to firstname.lastname@example.org.
Hope this helps.