As with Amazon usual SIM card arrived one day after the purchase.
The activation was a breeze.
On [...] the first has supplied Aktivierungsode and thereafter the personal data are entered. After a few e-mails are sent to the entered email address. Among other things, you will receive an e-mail with PIN and PUK for that SIM card and one with the access and the link for the first filing in the personal service world.
From filling out the online form to activate the SIM card went with me around 2 hours.