Betty Crocker review: buttercream frosting

I purchased Betty crocker butter cream frosting 12 ounce that says you can frost a 9 inch 2 layer cake. I couldnt even frost the sides, it was embarrassing as I made this cake for company that day. I always bought betty crocker frostings but lately the quantity is smaller, I absolutely will not buy 2 frostings to frost one cake. That is what it seems you want the consumer to do. Such a shame.