If you come with another friend or relative, both you and your friend will get 5 percent off the regular price. If three of you come together, all of you will get 10 percent off. 15 percent off for 4 people, and 20 percent off for 5 altogether. If you are introduced by our previous customer, you will also enjoy 5 percent off. If you are an old customer, you will get 10 percent off directly.