Once in the game, click the cog wheel in the upper right. Click the Settings tab. Towards the middle of the page should be a big "My Account" button. Do your linking of accounts there.
BPRD
Thank you very much.
What you describe is what logic indicates.
I literally had this same problem when I contacted EA help yesterday. I think I'll create a case of "Several features missing in PVZ heroes, for multiple people. Please update game."
According to EA though if you restart the game and link your account it will cause you to lose your progress, but in app purchases such as gems can be restored as long as you are still on the same device
I believe the missing My Account button is due to something along the lines to what your age is set to when you start playing the game.
