To comply with international anti-money laundering (AML) regulations, withdrawals must be mad using the same method as your original deposit. However, there are no restrictions on withdrawal methods for IB rebate accounts.
If you deposit via credit card, withdrawals will first be processed back to the same credit card until the "principal deposit amount" has been fully returned before we can switch to different method.
For more details, please refer to "What is the principal of Credit Card? What is the affect to Credit Card withdrawal?

