False tires mounted

So this week my Citrönette dealer almost got me around the corner. At the beginning of November I had my winter tires installed with him installed. When it snowed and frozen yesterday, I slid around on the highway and slipped, that was really life-threatening. Today I looked again and look there, on my car are summer tires! There they have made the wrong tires on it. Who has experienced this before, heard? What can m I don’t think you can do that.