you can't return it after using it.
the standard for returning goods is that as long as it is used or the label is torn, it can't be returned, so in the future, when shopping online, you should try to check whether the outer packaging of the goods is damaged or whether you like the goods or not, but once it is used, it can't be returned.
When you are far away from home, what is the food from your hometown that you most want to eat?