Originally Posted by YuropFlyer

Read the Terms and Conditions you accepted..

You didn't book a specific seat like 7A, you booked a window seat. I assume you got that (or, aisle, when reserved aisle..)

For good reasons, no one (especially on short haul - a bit different on long haul, where seat reservations usually stick) does pay for advance seat reservation who knows what it is about.

You should be happy they gave you some miles actually.

You're also in the wrong forum. There is a subforum for Swiss..