The store credits can be applied during the checkout process. It will appear as shown below.
Click the “Apply?” button to input the amount of store credits that you want to use for your purchase. It is up to you if you want to use the full credits available or just a partial amount.
Once you have clicked “Apply”, the credit used will be subtracted from the total amount to pay for your purchase. The end total shown will now be the remaining amount that you will pay with your chosen payment method, either through Credit/Debit cards or PayPal.