Oc rebate questions

last promotion i uploaded scans of all my invoices for the oc rebate and got about 100 prepaid visa cards in the mail. is it possible to just mail in multiple invoices with 1 form and just get 1 giant card? will they take abc invoices that just show the amount due without showing paid? i think they kicked a few for that last go round but the majority were from lowes so i didnt catch it or what they were really asking for