You have screwed your Key on too tightly, we all get carried away sometimes so we understand! Be careful not to squeeze the wine bottle too much when trying to remove an over-tightened Key; to avoid any messy spills it may be easiest to finish the bottle of wine before removing the Key.
In order to avoid this, please do not try to force the Key onto your bottles. When you encounter tension don’t try to force the Key on more, it will be securely fastened and allow you to sip on your wines problem free.
If you don’t seem to be able to unscrew your Key, please contact customer service, firstname.lastname@example.org and we will assist you further.