Chem 1050 access code

Erm so I'm cooked because I accidentally redeem the code that I bought at the library today for Chem 1050 mylab w/o ebook, is there any possible way to return it? Eventhough I know that it is not returnable but I havent use the access code yet... if could I'm selling it at $50 (original is $55), can be either purchase through reddit or meet at the uni so you can activate the code after the transaction 😭😭 Or if anyone willing to help me out, can this access code be used next semester? I might sell it next semester in case the access code can still be activate by then. Thank you!!