Here you can not go wrong. Contract documents and a SIM card came with Amazon Post. I have a few days waiting for the activation, because on the prepaid contract, which was to be replaced, a few more Euros were abzutelefonieren - today we went within 10 minutes. You go on "Jetzt-Aktivieren.de" enters the activation code being sent with, then the data of the contract holder are detected, name, e-mail, bank details, etc. One must also Schufa query approve (but that's for mobile phone contracts usual). Then there come a couple of offers for advanced options, two questions about whether the data can be used (I have not checked) - done. Within about an hour came the confirmation of DeutschlandSIM (eteleon) that the card is unlocked, a further mail with the new number, PIN and PUK and an explanation of how to make yourself known in the on-line service area - Ready. The tariff is just great for people who are less than 100 (or part thereof) phone minutes plus 100 SMS per month to stay, with just under 4 EUR. A reasonable sized Internet-volume completes the whole. Just beware when it goes on the telephone and ledges on the free quotas - 19 cents per minute / SMS is no longer cheap. But who creates the seen ...?