[CURRENT ISSUE] The Sims 3 - Disc Authorisation/No Disc Errors

Hi everyone. I bought and downloaded The Sims 3 onto my Mac through Origin, having no previous Sims games installed through disc or otherwise. Having installed it, I hit play, which took me to the launcher. Before that, a pop-up window informed me that I would have to enter my product code. As the launcher opened, it asked me to update the game, which I did. It then asked me to download a patch, which I also did. Nothing asking me to enter the product code so far. When I hit play on the launcher, I got a message saying Disc Authentication (not Authorization) Failure, No game disc found, please insert disc. I have been in contact with support, who suggested a workaround for the Disc Authorization Problem (namely deleting two folders from The Sims 3 file, emptying trash, and then restarting). I have playing again and have encountered the same problem. Anyone else who has experienced this and figured it out? Please help. Thank you very much!