I flew to a European capital with WizzAir this week - on top of my fare I paid £20 each way to choose my seat (40% of the total fare cost!), because I like to be near the front, and get air sick if I am towards the back and can't see out of a window.
When I boarded, a mother and two small children were in my row and said they wanted to sit together. The queue was huge and pushy behind me, so she asked me to go to her seat (an aisle seat towards the back of the plane). I said I wasn't happy and went to talk to a stewardess, but the flight was really full and there were no seats further forward, so she asked me to sit in the seat belonging to the mother. The stewardess wouldn't move the family, but said that I would get a refund if I went through their process and could move forward if there was a seat - which there wasn't.
I admit I'm quite petty sometimes and felt annoyed about having paid £20 for something I didn't get. So today, I've been backwards and forwards with Wizz Air who first of all said that the fare I paid was the same, I explained again what had happened - then she said that I had volunteered giving up my seat - I explained I felt I'd been coerced into moving etc. I then got a REALLY long word salady email about how service is really important to them - to which I replied that if it were, they would give me my money back for a service I hadn't received rather than upset a customer! Anyway, she's now she's said they categorically won't give me my money back and to go to some ombudsman - which for the sake of £20 I'm not going to do obviously.
My only consolation is that it's probably cost them £20 in time from their customer service operative having to type out banal replies to me....but be warned and don't pay a hefty percentage of your fare to them to choose your seats - they won't honour the service....!
(And to pre-empt the replies about choosing a budget airline and expecting premium service - I didn't choose to fly with them - I was on a girls' trip and one of the other travellers researched and chose the flights..)