PADI is actually protecting you. If they were to give you a Certification Card, you could get Nitrox from a shop an go diving. You are not properly trained in using Nitrox and could wind up dead. You could be seriously injured. Sounds like you should be grateful PADI is NOT giving you the card.
The best attitude is to write this off to experience, take the online Nitrox course and get back in the water!
The best attitude is to write this off to experience, take the online Nitrox course and get back in the water!