I had the same thing happen some time back because my name is different than the name on my spam email account, and it is also different than some random person's name that popped up on my origin ID through some glitch.
Basically, when it's not clear that they're speaking with the actual owner of the game account, they want you to verify your identity. They can do this over phone or via live chat, but really want you to go to live chat. Note that you cannot verify your identity simply by submitting another email ticket.
It is sometimes tricky to find the option for live chat (rather than email ticket), but I'm told it's easier now. If you can't find it, when you are clicking through the menus to indicate the issue you need support for, pick account security -- that will always activate the live chat button.
Note that if you just want a refund, it will likely be significantly faster and easier to contact Apple or Google. If you want the 132 donuts with a small donut bonus, then go ahead and jump through EA's hoops. Hope that helps.