"cost YOU $2500" is only your assumption, not true

it was very clear she meant the lens itself. She said "the lens costs $2500", she did not say "it costs YOU $2500", that is big difference.

The reason I paid $1500 was because I have to chose to do Laser, that is another $2000. Her original words are something like this: the lens alone costs $2500, but if you chose to do Laser, you will get a discount price for $1500 for the Lens.

再重申一遍，不是收费高低的问题，而是觉得他们事先没有给我任何关于lens的信息，并且告诉我不实的lens价格。这是让我不高兴的地方.