Follow these steps to move funds from your Main Wallet to USD Savings:

Step 1: Open the Mama Money app and tap 'Save in USD'.
Step 2: Select Save USD
Step 3: Enter the Rand amount you want to convert to USD.
Step 4: Review the details and press continue.

If you still need help, don't hesitate to get in touch with Mama Money Support with your registered phone number, amount, transaction date, and a screenshot of the transaction.