your first mobile bill is usually a bit higher. The basic fees are charged for the previous month and also for the next month. It can also be, that there is an activation fee as single charge. Did you already check your bill? You can see it in your MeinVodafone app and also on vodafone.de/meinvodafone. Please make sure that you registered all of your numbers (and customer number) in MeinVodafone, to see all details.
