I've been to all 4 Polish destinations but Budapest is just amazing, I can't recommend it enough - we've completely fallen in love with the place and it's probably my absolute favourite European city for a short break now. We went for the first time in May for a week and has such a great time we went straight back again a couple of weeks ago, this time with a load of friends in tow who also loved it just as much as we do. It's a beautiful city with loads to do, some excellent bars, restaurants and clubs, very family friendly and very cheap (well under half the price of eating and drinking here and accommodation is dirt cheap too). There's loads to do there too - we've still got a huge list of things to do and visit after packing as much as we can into two weeks. The Redjet speedboat tour, where you do stunts like 360s on the Danube, was particularly memorable. Whizz air were great both times too - we had delays on both outbound flights but no fault of the airline (the first was an air traffic control strike, the second due to the police coming to arrest someone on the flight), certianly better than most low buget airlines I've flown with. These 20% discounts seem to happen all the time. We also saved a fair bit by joining the Whizz Air club, certainly worth thinking about it you think you might make more than one journey.
Romania it's lovely, especially Transilvania (so go after the Cluj Napoca deal). It's also quite cheap and you will be able to enjoy lots of activities for les money. Try the food as well, you will not regret it! :D
Yes in the process of claiming but whizz are taking long to respond..
Once you have booked! Never check the price again
You are due hefty compensation as its more than 3 hours late and per person.