An application fee must be paid in advance for all fiancée visa applicants processed in Switzerland. The fee must be paid per person and is non-refundable. No application will be processed without the proof of your payment.
Please also see on http://ustraveldocs.com/ch/ch-niv-visafeeinfo.asp.

You can learn more about the payment instruction on http://ustraveldocs.com/ch/ch-niv-paymentinfo.asp

Note: No other form of payment is accepted.

Do not schedule your appointment online!

Please send the proof of your payment together with your checklist to our Immigrant Visa Unit.