- work in groups(inline mode ane jumping from private to group chat)
- improve the texts
- add paying page
- get prices
- add Chinese version
- start page(with menu)
- subcategory page(select tea)
- customization(sugar, ice, toppings)
- upon completing custimization(so_far)
- editable-order
- address(total_and_address)
- before-pay confirmation(before_pay)
- pay