How long is the trial BahnCard 25 or 50 valid when purchased at the promotional price?

The trial BahnCard is valid for 3 months. The trial BahnCard, whether 25 or 50, purchased at the promotional price is valid for 3 months from the first day of validity. It must be cancelled in writing 4 weeks before its expiration date. If not, it will be continued as a regular BahnCard or a discounted one, such as a BahnCard for senior citizens or a My BahnCard for young people, for first or second class, as appropriate. Your date of birth is used to check which BahnCard will be selected as the subsequent card.