The Sims 3 and 12 DLCs gone from my account

Hi, 

So, earlier today I noticed that The Sims 3 and 12 expansion packs completely disappeared from my EA account. After speaking with live support, the advisor claimed that these games are not on my account (I know, that's why I'm contacting help line) without checking my actual billing history or order IDs and they closed chat. I tried to reopen topic 3 more times but it won't even show in my cases because first one was claimed as solved.  So right now I can't even connect to any other advisor to solve this. 

Maybe someone from EA would please look into this and help me? 

When I try running the game using the desktop shortcut, the EA App opens with an error message saying that I don't have access and that it may have been downloaded by another user who owns it. But the thing is that I haven't changed email address and have only this one EA account. All packs were purchased on the account I am writing from, and all security verification codes that I used to communicate with help line arrived at the exact same email address where the original purchase confirmations were delivered.

My Order History shows completed and fulfilled transactions, but without any product details and transaction descriptions. There's only date of purchase and order number, but orders are named "placeholder" with prices shown as "SC0". I have all original confirmation emails from EA matching those purchases dates and order numbers with the exact names of the content I bought. At the top of these confirmation emails, there is a "view online" option, but clicking it opens an error page saying: "The system is temporarily unavailable. We apologize for the inconvenience. Please try again later" so there's clearly an issue on EAs system side.

Also, inside the EA App under the download history, these exact titles still appear with matching installation dates. They worked and were showing normally for months so there wasn't any problem before - they were legitimately purchased and downloaded, but for some reason, the licenses were unlinked from my account. Now, when I click on them from download history I only have option to buy.

I would really appreciate help or advice where should I report this!