I couldn't find any information on a barcode "Carrefour Discount reported as su". It's possible that this is not a real or valid barcode.
If you could provide more context or details about where you encountered this barcode, I may be able to help you better.
If the barcode is related to a product sold by Carrefour, a French multinational retail group, it's possible that the information is not publicly available or is specific to their internal systems.
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