Wow, my Samsung vacuum arrives tomorrow ㄷㄷㄷ

I heard they give out gift certificates if you buy that electronics brand, so I looked into it quickly and bought one.
They told me to wait at least a month, so I was expecting it in September, but out of nowhere, they're saying it's coming tomorrow.
Also, it's a cordless vacuum, so why do they need to visit for installation? Anyway, wow ㄷㄷㄷ