They stack when you order but are subject to review prior to acceptance and dispatch.
I fell foul of this as I had 3 codes stacked plus my trade in and order was acknowledged and card was charged but they cancelled my order without notification:-
"Good Day! I hope you're well.
This is Jianne from the Samsung Online Shop Resolutions Team. Your case has been formally escalated to our department under reference number #xxxxxxxxxx.
Thank you for reaching out to us. We understand you want to make the most of the offers available on our website, and we recognize the need to clarify the reason for the cancellation on your orders.
To clarify what happened with your recent transactions, our system shows that your order
(UKxxxxxxxxx) was unfortunately cancelled automatically by our system because it did not pass our standard verification and validation checks.
At Samsung, we take security extremely seriously to protect both our operations and our valued customers. Unfortunately, this order did not pass our mandatory security validation process and was flagged as a security risk.
Please note that the Order Confirmation you received is an acknowledgment of receipt only and does not indicate acceptance of your order. In accordance with our Terms and Conditions of Sale, all orders are subject to our acceptance, which is only confirmed once a Dispatch Confirmation email is issued.
Our contractual obligations apply solely to products verified in that dispatch email. Consequently, we are unable to honour promotional offers or supply items from orders that do not successfully clear this initial stage.
You may also refer to our
Samsung UK | Terms and Conditions of Sale on our website. For your privacy and security, we are unable to disclose the specific reason for the cancellation. This approach aligns directly with our data protection policy, which ensures the ongoing security of our systems and customer information.
Our standard recommendation to resolve this is to attempt the purchase again using the active promotional offers currently available on our website. However, Please note that all orders will still undergo validation, and any new transaction remains subject to internal and external policy checks."