Locked out of Sims 3 Expansion Packs

I bought the physical disks for the Sims 3 expansion packs as they came out around 2009. Since then, EA has made it so that you have to register your game in their online app in order to play them, even if you have the physical disks. I tried to do so, but I had already registered them with an old EA account I did not have access to. Since I did not have access to this account and could not redeem the codes from the physical disks on my new account, I called customer support. They had me transfer my old account to a different email but I still couldn't log in because the EA app would not send the required verification code to my email. Because of this, I was forced to merge accounts. The person I was talking to from customer support read me the disclaimer for merging accounts, indicating that (for some reason) it may delete games, and he even said it would definitely remove my access to Star Wars Squadrons. I asked if merging would delete my Sims 3 expansion packs, as those were the games I care most about and was trying to access. He said that the Sims 3 Expansion Packs WOULD transfer. So I agreed to merge them because those are the games I want to access. And he merged the accounts and deleted my old account. Before hanging up, I wanted to check that the merge was successful and that I now had access to the Sims 3 expansion packs on my new account. I checked and asked him if they should be there and he said yes. When I said they weren't there, he said it might take a few moments and asked if he could help with anything else. Since I thought they would transfer shortly, I said it was fine and we hung up after an hour long call. I waited an hour and checked and saw they still did not transfer. I was worried since he suggested they would transfer shortly, so I called again to ask how long it should take. I got a new representative and they said that I no longer had access to the games, that they got deleted during the transfer (literally NOTHING from the old account transferred to my new one, so I do not know what the purpose of it is or why they would suggest it), and that since my old account had been deleted I had no way of accessing them. I own the physical disks and have the redeem codes from those disks, so since they are no longer being used by the old account I thought I would be able to use them on my new one. But no, since they were redeemed with my old account (which is now deleted and has zero access to the games), the redemption codes no longer work. I bought the games before the EA app existed, and you used to be able to use the redeem codes multiple times to transfer between computers. Now I have zero access to them, despite the fact that I own the physical copies, no one else has used my codes, and I bought them 14 years ago when I could use the code multiple times. Since I have already paid for them and own them, I asked if there was a way for me to gain access to them virtually "for free"/be granted access to them through the EA app since I have already paid for them. The customer service rep. said no. He offered no solutions besides posting it here. I lost access to the following Sims 3 expansion packs: Ambitions, Supernatural, University Life, World Adventures, Generations, Seasons, Island Life, Pets, and Showtime (a total of 9 expansion packs). I still own the physical disks and I still have the redeem codes. Please tell me how I can regain access to the games I PAID FOR. I was told by the first customer service rep that my expansion packs would transfer and they didn't. I explicitly asked about the expansion packs before agreeing and he assured me they would transfer in the merge. Since I was told this by a representative, and since that is the only reason I agreed to the merge, it is extremely unfair that I do not have access to the 9 games I have paid for. EA needs to fix this by either making my redeem codes viable again or giving me free access to the games I was explicitly told I would have access to. I am out $180 because of that customer service representative. It is so unfair, especially since I literally physically own the games. Please help as this is just not right. I have owned them for 14 years, long before the EA app existed. It seems downright unfair that I no longer have access to games because of changes made retroactively.