Funding your USD wallet is very easy - To do this, simply fund your Naira wallet and then convert to USD.
Here is how to convert Naira to USD:
Log in to the Sats App
Tap on “Exchange”
“BUY USD” - Tap on the conversion arrow to point in the direction NGN - USD
Enter Naira amount you want to convert to USD
Enter PIN
You have successfully funded your USD wallet.