When I downloaded the newest update to Plant & Zombies 2 yesterday noticed that some plants like the Enchant-mint and Appease-mint were missing. Plus the Goo Peashooter and Sling Pea that I have had for a little while are now locked.
My electric currant disappeared from 2 of my 3 profiles for no reason (never use it but i only noticed because i got some seeds for it), i complained to EA HELP CENTER (below) and gave them my player i.d. and eventually got it back. Suggest you try the same.