Please stay away
Please stay away.
Been with them for 3 boxes. It's always the same price, but the cylinders are different size, with an adapter that is really finicky to use. 1st box was fine, 2nd box the cylinders came half empty, and the 3rd box they were a lot smaller. I had enough and said I want to cancel. They wasted lots of time trying to convince me to stay with them. I said I don't want to. They want me to send the tauschbox back, but the trick they don't reveal: the return slip is only in the new tauschbox!! So if you want to cancel, you either pay them 80 euro, or you pay the cost of the box sending yourself. Moreover, they gave me 4 weeks to send it, but i received the claim for the 80 euro within two weeks. Absolute scammy practices, stay away, cannot recommend in any way, shape or form. Shame on you, sodalivery.