The length of time a cross-border e-commerce Amazon store is blocked depends on the severity of the violation and the seller's previous credit record. Usually, if the violation is minor, it may only take a few days to a week to unblock the store. But if the seller's violation is serious, it may take weeks or months to unblock the store. Therefore, sellers operating on the Amazon platform should abide by the platform regulations and avoid violations to maintain the store's good reputation and stable operation.