I got two dragons I never bought and hatched

Today, I logged into the game, and the first thing I saw is the message that says I got a Rumblehorn, a dragon I never bought an egg for and hatched. I got the option to customize and name it. I tried exiting the game, reinstalling it, and logging in again before continuing playing the game, so I didn't accidentally get a new dragon I didn't want. Unfortunately, it didn't work, and I had a new dragon out of nowhere. Then, a few seconds later, I got the same message saying that I got a Groncicle. Again, I got the customizing page. I pressed the OK button to finish customizing it, and suddenly, I had these two new dragons out of nowhere. I am very confused as to how and why this happened, since just an hour before, I was playing the game and everything was completely normal. I didn't log out, uninstall it, or do anything that could've possibly caused this. All I did was exit the game. I have played this game for a long time, and this never happened to me before. I wouldn't have complained if it was one dragon, but it was two dragons that I do not want to take up the spaces in my stables that were meant for other dragons I was going to buy. I tried reinstalling the game and logging back in, hoping it was just a temporary glitch, but the dragons are still there. I don't know what to do.