I haven't delivered many cakes but the ones that I have, the clients are so excited and delighted that i would never even think of that. I would hope that if someone was unhappy they would let me know right then and there, b/c they probably wouldn't want to pay for something they were completely disappointed with. If they were unsatisfied after eating it, i would hope they would call me so i could rectify the situation. Hope you haven't had any bad experiences on the subject!!!