Excerpt from the DB information on this offer:

"As part of a market test*, we would like to try out and test the Sparpreis Business exclusively with you and other selected bahn.business customers.

The Sparpreis Business can be canceled and complements the previous offer, which passes the non-cancelable Super Sparpreis with train connection and the flexible Business pay scales, during the test period from October 4 to November 30, 2023.

Here are the most important conditions of the "Sparpreis Business" test offer at a glance:

+ Train commitment on the day of travel booked
+ Cancellable for a fee of 10 euros until before the 1st day of validity
+ Refund is made to the originally used means of payment
+ 25% discount with BahnCard (Business) 25 or 50
+ City Ticket included

During the market test, you will be given the opportunity to provide us with brief feedback on the offer immediately after booking. If you have any questions, please do not hesitate to contact the Business Service.

*Your organization University of Bremen was randomly selected for the market test and will be given the opportunity to book the Sparpreis Business in the period from 04.10. to 30.11.2023. You do not have to do anything, the Sparpreis Business will be automatically displayed to you and your bookers as an extended selection in the booking process."

Note from Travel Management Office:

• All travelers, regardless of whether they have a BahnCard or BahnCard Business, can use this pay scale.
  It can be booked as long as the allotment is available.
• All BahnCard holders receive a 25% discount.
  This also applies to holders of a BahnCard50.

Please continue to ensure that you select the correct BahnCard in the booking process.
There is a difference between BahnCard and BahnCard Business.
If the wrong BahnCard (BahnCard Business instead of BahnCard) was selected in the booking process, DB may demand a penalty payment (fare surcharge) at the ticket inspection.
Penalty payments are generally non-refundable!