How to sell gift cards (Need instruction)

Hello, I need detailed instruction how to sell gift cards online, with the lowest fee. All gift cards are bought officially and I have the receipts, that's why very important to sell them with the lowest possible comission or even better if possible to make some money from selling it. I have many of gift cards that sell on Amazon (except Amazon gift cards), so you can just check gift cards are available: https://www.amazon.com/s/ref=sr_pg_1?sf=col&rh=n%3A2238192011%2Ck%3Ae+mail+delivery&keywords=e+mail+delivery&ie=UTF8 If you can help with instructions, please a bid and write comments.