When did you complete it? In one week or did it take you several weeks to do so? If it took you more than one week the pet battle dailies and quests can get buggy and reset on a person. Did you complete then in a group? Sometimes when in groups specially raid groups they won't give one credit for them either? I would send in a ticket and explain what the problem is. Might get a nice GM to help you out. Otherwise you probably are out of luck and will have to redo them. Might also have to drop quest to be able to redo them. I Hope you don't have to redo them good luck.