Hello, yesterday your Migros online supplier tried to explain to me that he could only accept Migros bottles in the PET return bag. He found fault with the Coop PET bottle, which I almost can't believe. The bag was indeed full of PET bottles, but correctly sealed. Nothing of the sort is noted in your Migros online conditions. Just by the way: he couldn't find out where the Coca Cola bottles in the bag were bought... So please enlighten us: How is it really? Thank you very much!