I felt like robbed from this company. I hope that this is not going public because I don't want to ruin your image, but how can you offer that kind of whitening treatment for 20£? It's a total waste of money. My teeth didn't get any whiter at all, and maybe, if I do the other 6 treatments that you guy suggested me, only my teeth in the front will get slightly whiter. I say again that I felt like this company stole my money, and my time also!!! By the way, the staff member has been really kind with me, that's the only good thing about my experience. I will never be back there.