Hello, I got veneers 6 months ago on my top 6 front teeth, and when I got my temporary veneers put in, they came off 4 times in 5 days. Then after 6 months, my left k9 veneer came off. I went back the next day and it was put back on, and now two days later it fell off when I sneezed. I am very careful and eat with them as little as possible. I paid $6000 for this nightmare. What should I do?