I ordered a laptop for over 1000 euro yesterday at 11am. I had to make a deposit and I got it right away. But until today (Friday) I have not received an email, and wanted to ask when this email would come and when the laptop would arrive (I need it by Sunday and you got it after 1 working day)
When and which email comes, only Otto can tell you himself.
I think Abe is unlikely to be there until Sunday.
The best thing to do is to ask the seller. It also takes a while for the deposit to be visible on his account.
The delivery date certainly refers to 1 day after receipt of payment, otherwise the down payment would also make no sense
