Thank you for your request.
I am sorry to hear that.
In such a case, the amount will not be debited but only reserved and you should receive a refund within the next 3-10 days.
If you have already tried to make a payment with several payment methods and it still does not work, please contact your bank.
If you still see the amount debited from your account within the next 10 days, please contact us:
Tel. 0848 44 66 88
(available 24/7, sometimes you may be required to wait)
or from abroad: +41 51 225 78 00
Or contact us via form: Claims and complaints | SBB help & contact
I wish you a lovely day
Kind Regards MelanieD