Petsmart gift card in Purina food...?

Contact the companies by email or phone. Give the code numbers on the bags. They need to know where the processing messed up. They have many companies and they'll find out which one did the mess up. I think (hopefully) they'll send you gift cards as replacement. Make sure to tell the date you bought the bags and the store you did it from. Don't forget to tell the address, state, and zip code, too!