I carded succesfully Amazon when to repeat transaction

[Truekek]

I am very new I had some success last few days with some items shipping
Yesterday I hit amazon for 300 pounds. I thought it was too much but 20 hours and its not canceled
I have a delivery date but its saturday so its not shipped. When can I place new order what you think? Should I wait more or hit him up today and tomorrow and then monday ?