UK CAA made Ryanair to send this email to affected passengers. So you can demand comparable things from Wizz Air:
We refer to our recent email regarding your Ryanair flight booking, and we write to remind you that you are entitled to choose between a full refund of the cost of your ticket, or re-routing as well as a refund of certain expenses (as detailed below).
If you wish to avail of re-routing, you can transfer online (free of charge) to the next alternative Ryanair flight to the same destination airport (subject to seat availability) – click here. If you require other rerouting options, such as departing / arriving from another airport served by Ryanair or (if a suitable Ryanair flight is unavailable) an alternative airline, train, bus or car hire, please contact reservations, click to chat with one of our advisors (subject to opening hours) or go to the airport ticket desk. If you avail of re-routing via an alternative airport, you will be entitled to a refund of the reasonable cost of transferring to that airport. Also, if you avail of rerouting and, as a result, incur expenses in respect of accommodation, meals or refreshments, you will be entitled to a refund of such reasonable expenses.
If you were notified of a flight cancellation more than 14 days in advance of the scheduled departure date, you are not entitled to EU261 compensation (as opposed to expenses as detailed above).
We again sincerely apologise for the inconvenience caused. If, following our previous email, you have already made a choice of a refund but now wish to change your decision, please contact our Customer Service team and we will assist you to alter your preference. For example, if you chose a refund and re-booked an alternative comparable transport option (flight, train, bus, car hire, etc.) yourself, we will refund the difference in cost, to be assessed on a case by case basis.