Subscribers are informed of this product change by letter just before Christmas. The magazine will lose by the new 2-week rhythm clearly topical. According to the Customer of the Bauer Verlag If that was important / is that you want (director Susanne Tennert) do not have a special right of termination and continue the subscription for another year. The reason given is that of publication of been changed weekly on every 14 days, and be lower than the subscription fee even at a higher single-price.
That is to say: less product, less timeliness and customer should swallow it.
I can only advise to defend yourself and to insist on the special right of termination.