Prerequisite for the change was a possible porting of the telephone number and the support of ACR (- automatically dismiss a currently only in the O2 network function offered by anonymous callers).
This information was clarified after a short search and contact.
I hesitated for a while, until I had finally decided me zuzulegen this tariff (per 100 units SMS / phone and 300 MB of data). With netzclub I already monthly costs about 5, therefore, the new tariff would certainly worthwhile.
So, waiver of the old provider filled sent, and balances charged to the export charge (25) to settle. Then as to the documents of the order described DeutschlandSIM completed. Finally, a week later, the order confirmation and the next day received the bill. And "good" final (11 days after the order) I have received the news that the activation of my SIM card was declined (- without giving reasons).
Well, of course, a rejection can have many causes (and is difficult to isolate, if you do not know the reasons), but it's really hard for me to understand this. I have a regular income, no credit, no financing and no other financial difficulties. I regularly check on "my schufa" all my entries and my score. Abnormalities in this regard would therefore be noticed. I live in a "popular" area in the middle of the city, although the city really should not matter, but probably he does it anyway.
However, the assessment is not so bad, because the activation has been rejected, but for the reason that this is not notified and already communicated in or immediately after the ordering process. Such decisions are made with the help of computer-assisted algorithms and databases. If DeutschlandSIM leaves 11 days of the review, then it can happen sometimes just that a potential client ported his number, the old contract announced and then completely in the rain without providers.
At least, it is unnecessary lost time - the attempt was not worth it in retrospect.