In Nigeria, if you want to sell an Amazon card worth 50, there are several steps you can take. Firstly, you need to find potential buyers. This could be through various online platforms where people are interested in purchasing such cards for different purposes like online shopping or gifting.

Once you have identified potential buyers, it's important to communicate clearly with them. Explain the details of the Amazon card, such as its denomination, expiration date if any, and how it can be redeemed. Provide accurate information to build trust with the buyers.

After reaching an agreement with a buyer on the price and terms of the sale, you need to ensure a smooth transfer of the Amazon card details. This might involve sharing the card number, PIN (if applicable), and any other necessary information in a secure way. Make sure to protect the privacy of both yourself and the buyer during this process.