You’re looking to add a FAQ for a better user experience and to reduce the amount of customer support needed.
<aside> ❗ Please don’t link to this page since there are some parts that should be customized to your site such as who users should contact for customer support
</aside>
For the best experience use a desktop/laptop with your wallet connected to the Metamask extension via a Chrome Browser. Alternatively you can use the browser in the MetaMask mobile app to redeem your NFT
First download the MetaMask extension via the instructions here if you haven’t done so already. Next import your wallet via the instructions here
Using the MetaMask Mobile app, downloadable here, you can use the app’s browser to access a tokengated product/discount as per the instructions here.