In Nigeria, if you want to sell a $30 Play Store gift card, there are several steps you can take.

Firstly, you need to find potential buyers. This could be through various online platforms, social media groups dedicated to such transactions, or word-of-mouth among friends and acquaintances who might be interested in purchasing the gift card. Make sure to clearly communicate the details of the gift card, including its value and that it is for the Play Store.
Secondly, when you have a buyer interested, ensure a secure and legitimate transaction process. It is advisable to use common and trusted payment methods in Nigeria. For example, you could use mobile money transfer services or popular bank transfer options. Be cautious when sharing the gift card details and only do so when you are certain of the buyer's credibility. Provide the redemption code or other necessary information accurately and promptly to complete the sale.
Finally, after the successful transfer of the gift card and receipt of payment, follow up to confirm that the buyer was able to use the gift card smoothly on the Play Store. This not only helps build trust but also can lead to repeat business or referrals in the future. By following these steps carefully, you can effectively sell your $30 Play Store gift card in Nigeria.