I haven't yet received my book. may happen, i'm in italy, long shipping from america.
but I also didn't receive any email confirming that the book was sent.
Heck, i checked and didn't receive even any mail confirming that my order was received.
But my bank account records me paying ookodook as a net expenditure, so i am sure that i did order the book and that my money was paid.

how worried should I get?

P.S. sorry if this question may have been asked before, this discussion is 10 pages long and i'm not reading all of it.