I've purchased 85,000 coins for 4.99 but never received the 85,000 coins.

You should probalby make a ticket so Customer Service can look into it: http://help.ea.com/

I don't see how i can get a trouble ticket.

Help with a Game> Select the game> Contact Us

http://help.ea.com/en/contact-us/new/?product=plants-vs-zombies-garden-warfare