I have just stumbled across an Instagram ad by Swiss post. They are giving away 3 free cards (judging by the pictures, it should be postcards and not folded cards, although I am not quite sure).
As you may remember, giveaways such as these were usually distributed at the postal counters during December – I guess you can order your set online this year due to the coronavirus pandemic?
To order your set, go to Jetzt Ihr kostenloses Kartenset bestellen
If someone has already received their set, please share whether it contains postcards or folded cards, thank you! 