Missing level 20 assignments

I have been level 20 on all classes for a few years but never received my proficiency or mastery assignments. Granted, I did get the definitive addition as well as shortcut kits for all classes. I’ve appealed to ea help a few times but all led to nowhere and I’m still assignmentless. If someone can help me, I can provide my case number if it can get me anywhere with getting the assignments.