[Effendi]

Hi Jan and welcome to the forum.
The deactivation is 30 days after the activation, not the last use of the option. I.e. if you active it today, 8th of June, and then you send the deactivating SMS it will work till 7th of July.

There have been some problems recharging with non-Italian credit cards, but they seem to be over. Anyway you live in Germany so you can use O2 Loop scratch cards as well to recharge it, which is quite easy.

I think Poste Italiane doesn't deserve such a bad reputation. I'm used to send mails to and from Germany and never had any problems. And it usually takes the same time with PT and DP, so I won't get worried. We also sent many Wind cards by now and none got lost. Anyway you can ask Andrea about the tracking option.