This guide will tell you How to Add Money to Xbox Child Account. You have to follow all the instructions carefully to add the money.
1- You will need to open your web browser and go to account.microsoft.com/family. After that, find the account to which you want to add money. After selecting the account, click on the Add Money button.

2- Now you have to choose the amount you want to add. Select the amount and then click on the Next button.

3- After this, a review window will open up where you can review the payment details, and then click on the Buy button.
