Regardless of the day they are uploaded and the location of the business, you can upload up to 3 receipts from the same store with the same transaction date.
Receipts contribute to this threshold as they are processed in our system so if you upload more than 3 receipts at once, the 3 receipts that finish processing first will qualify. Shorter receipts tend to process before longer receipts and may cause the long receipts to no longer qualify for rewards. Longer receipts naturally may take a bit longer to process since they have more information.