Bonus Campaign

I like to sprinkle some seasoned seaweed called “味付けのり” in Japanese on cold udon noodles. So, I bought a bag of it at a supermarket today. At lunch, I opened the package and tried to take some out. However, it was tightly packed and it was very hard to get any of it from the package. I took a closer look at the package because the label said it contained 30 grams, but I felt that it contained more than 30 grams. I went to the kitchen to bring a kitchen scale to weigh it. To my surprise, it was 70 grams. Maybe it was a bonus campaign or something.