I have an error card that I would like to submit, but don't really want to pay a separate shipping fee for just the one card. Is it possible to delay the shipping on something like this and just lump it into the next group? For example, if I'm sending in 30 economy submissions, 1 economy with errors, and 1 economy with sub grades; could I get the 32 sent back in the same shipment if I didn't mind delaying the shipment until they were all finished? Or would I need to do the 3 separate shipping fees?