First, focus on your immediate needs such as hotel & meals. Worry about comepnsation when you are back at home. It sounds as though you are being provided at least the hotel. If you have expenses for food because it is not being supplied, then make sure to keep your receipts.
Second, whether you are due compensation will depend on the reason for the delay. If it is an "extraordinary circumstance" you will not be due any. Otherwise, you will. Try to gather as much information as you can about why the delay has occurred and try to get the names or at least descriptions of the people who provide it.
Third, Switzerland, although not an EU Member State, has adopted EC 261/2004 as part of its own law. However, Swiss courts are not bound by EU law and do not necessarily follow EU precedent in this area. That may have been what you have read about. However, your is a departure from Spain and thus, EC 261/2004 as interpreted by Spanish courts and the CJEU will apply to your specific situation.
Once you have better information as to the reason for the delay, please provide it and you will get more definitive assistance here.