The release lever of our SodaStream EASY was broken (it survived only 10 months).
After opening a support ticket I was told, they would send me a return slip.
Because this seems to be a highly complex process, I'm still waiting for it.
That's why I used the last Sunday to design and print such a lever.
BTW: I replaced the holding axle with a M3x30 screw.
shell=1mm (2 lines), top/bottom=1mm (4 layers)