Is there a discount for Amazon buffet birthday?

Birthday discount: On the birthday, with my ID card, I can enjoy a personal discount of 6.8%, and I can also enjoy a free trip for four people and get a gift from Amazon (the other three people need to spend at a regular price, and the birthday is subject to the date of my ID card). Senior citizen discount: senior citizens over 60 can enjoy personal half-price discount with valid ID card. Constellation discount: the main constellation can enjoy a personal discount of 15% in the current month (based on the date of my ID card). Name discount: (the other two need regular price consumption, subject to my ID card).