Re: Lost Arena Rewards

I have had a look on the new help menu.

For reclaiming something you have earned, there is only email option for contact.

https://help.ea.com/en/help-contact-us/?product=plants-vs-zombies-2&topic=missing-reward&category=missing-content&subCategory=never-received-content

Restore lost progress has a chat option and if you have no luck with email then I guess there is no harm to give it a try but please be prepared to accept the fact that the advisor might not be able to give you the missing items you wanted,

https://help.ea.com/en/help-contact-us/?product=plants-vs-zombies-2&topic=restore-lost-progress&category=technical-support&subcategory=game-progress-issues