Kindly note that you are required to add payment details to your Shopback account to be able to request for a withdrawal. As this step involve monetary activities, you would not be able to proceed with cashout if it is not complete. The reasons for this can be a few:
1) Bank: Bank details entered belongs to the bank that is not listed in Shopback's platform. Means that; if you don't see your bank, it does not work with Shopback yet. As of date, we only have CitiBank, DBS/POSB, HSBC, OCBC, UOB and Standard Chartered
2) Format: The account number added might have an incorrect format. If you get it wrong, your bank might send your money to the wrong destination, or it may charge you for an invalid payment. You can usually find your account number by logging into your online banking, or checking your bank statement.
3) Verification: In order for you to verify your payment details, you will first need to get your Shopback's email address verified. If your ShopBack account is yet to be verified, you will be unable to verify your bank details.