Translation of versiegeln

Now I just got scared! Have I missed my own son's birthday? Luckily it is on the 19.08, exactly in a month. Man, you confused me now. Anyway, we had a great time in the mountains and the snow was great.
In plural there is no difference between the formal and the colloquial address form. Do you mean that you are using 3rd person singular form for the plural imperative? If so, I will change all entries so far.
When I was in Austria, I went to ski school for a week in Kitzbuehel. Do you know this place? It's not far away from Munich. We always fly to Munich, with a stopover at Frankfurt airport.