This is how it works:
Load your M-Bäder card with credit of 25, 50, 100 or 200 euros at the cash desk and present your M//Card. Depending on how much credit you load on your M-Bäder card, you receive a discount of up to 20%. When you pass through the turnstile with your M-Bäder card, the discount is applied to the rate valid at the time of admission and deducted directly. You save on each admission even when you buy additional admission tickets with the M-Bäder card at the cash desk or ticket machines.
For example, if you have charged your M-Bäder card with 25 euros having presented your M//Card, you only pay 19.80 euros instead of the normal 22 euros (10% discount) for a sauna day ticket at the Olympia Schwimmhalle (Olympic Swimming Pool). If you charge up with 200 euros, the price is just 17.60 euros (20% discount).
Bonus points previously collected with the M//Card are of course not lost. Your bonus points will be sent to you in the form of a voucher in November provided you have collected at least 1,000 bonus points. The vouchers can be redeemed at the M-Bäder cash desks until the end of the year.
