Yes, you can use both BeepMart credit and debit/credit card for the same order.
If you choose to use your BeepMart credit during checkout, your available BeepMart credit will be deducted from the total order amount.
Any remaining balance, can be paid using your debit or credit card. If your in-store credit is enough to cover the full order amount, you may complete the checkout with BeepMart credit only.