Lapel Pins of the Olympic Games - 1980 Moscow, set of 5

I decided to buy these 1980 Olympic pins for my mother for her birthday since she was unable to go to the Olympics that year and I wanted to give her something from those Olympics. So I ordered this product and after a few days the product arrived(quiet quickly I might add). I proceed to look at all the pins and they looked fine, but then upon closer examination I noticed one of the pins said 1976 on it. I did some research and I found out that that pin was actually from the 1976 Innsbruck Winter Olympics. So now I have bought my mom a gift that is only 4/5 complete. Although I must admit the pins were shipped very quickly, I still received the wrong product.