Yes it seems to be an issue found in the 'h' version. Only the original 3 'hits' of the reunification cards are available and these do not 'replenish', so to say... So, is there nothing one can do about it? I mean I spent more than a week an a new game (h version) and meanwhile I reached year 1862....

Provided you have received acceptance from all the minors in Germany... After 1860, the North German confederation will be formed, provided you are at Peace with Austria (but doing so might provoke an Austrain war, so be carefule). Owning Holstein and Schleswig provinces directly or having Holstein...