Net Deposits = Total Deposits - Total Withdrawals you have made using a particular payment method, such as a debit or credit card. Whatever funds are deposited with a specific payment such as a credit card or e-wallet, they must go back onto the same credit card/e-wallet.
This is a protection measure to ensure that, for example, if your card had been stolen and used without your consent, these measures would ensure that your money couldn't be transferred to somebody other than you.
Positive Net Deposits = If you have deposited more than you have withdrawn to a payment method.
Negative Net Deposits = If you have withdrawn more than you have deposited to a payment method.
Example: Total Deposits of $10 - Total Withdrawals of $5 = Net Deposits of $5. This is a positive Net Deposit figure.