I've tried, I've really tried to give them a shot,...

I've tried, I've really tried to give them a shot, but EVERY TIME, their cupcakes taste undercooked. My mom had to throw hers away because it was still doughy in the middle. Gross! I'm so sad because the flavors they come up with are really excellent. Just leave them in the oven longer, please! I hate that undercooked taste.