Why preorder

I know Vodacom is at fault but you need to know they are letting your brand down. I preorder the Samsung note 8 on the 28th of August from them. Today is the 22nd of September and I don't have it. They are only able to get it to me next week. What is the point of preordering something if they cannot deliver it at the latest on the release day. Also note the phone was promised to get delivered between the 15th and the 22nd.