Withdrawals are NOT immediately credited to a Credit/Debit card. Withdrawals will generally take up to 7 business days to be processed and credited to a Credit/Debit card.
It generally takes a bank/credit card company a few business days to process transactions and post the credit to the actual bank/credit card statement.
Processing time will vary depending on the bank/credit card company. If a withdrawal is to be credited to a Gift or Pre-Paid card then the processing time frame may be considerably longer - may take up to 30 days for those companies to process transactions on their end.
If you are to receive your withdrawal via check you would need to allow up to 4-6 weeks for processing and delivery.
Players would receive an email confirmation for their withdrawal within 24-48 hours of the withdrawal request indicating how the withdrawal is to be processed.
(Make sure to check any spam/junk folders for the withdrawal email confirmation if you do not receive a confirmation within 24-48 hours from your withdrawal.)
Related Article: How will my withdrawal be credited?