What are the rules for using the 6.66 coupon for my brother's birthday?

Introduction to brother Guan:

1, brand overview:

Gelaoguan, derived from the honorific title for good brothers in Sichuan dialect, is a catering brand under Shanghai Gelaoguan Catering Management Co., Ltd., which has developed from a small shop in the mountain city to a chain brand with 63 stores in Sichuan and Chongqing.

2. Brand concept:

Ge Laoguan has 27 years' experience in condiment management, and has a unique view on the bottom material of hot pot. While ensuring the advantages of seasoning, we will constantly innovate, improve and control the quality of hot pot. From the selection of materials, proportion and cooking, we have devoted our sincerity to inheriting the spirit of artisans.