This is the 2nd time I'm making the request the first time took 9 days but now already 10 days passed. How long did you wait for AdSense approval?
I got mine over a decade ago, I think it took about a week for the letter to come to my address back then.
Is the question still relevant? I guess I got my approval more recently... i.e. this year. Detail: I have a Blogger. Started my blog back in November.. Accruing posts... I probably requested mid-December or something? Everything finished around end of January (around 28th or so)... But I had to correct and resubmit at least twice due to content issues.