When you submit 4 valid paper receipts to a green receipt card with four check marks you earn 100 points. The points are credited once the card is complete. Every validated receipt earns you an entry into one of three weekly $250 Bonus Sweepstakes. E-receipts will also fill up the squares on the green receipt cards if there are spots available.
If you complete all your green receipt cards (with paper and/or e-receipts) before they are replenished on Sunday, you can submit paper receipts directly to the pink sweepstakes card in the app for double the sweepstakes entry per receipt, but no additional points. E-receipts submitted after the green receipt cards are filled will also earn double sweepstakes entries, but no additional points.