I’ve just cancelled too.
I was impressed with the idea at first and wanted to support Liberty (that first box was fabulous!), but I never loved the idea of my money being completely locked in to spend there (Naked Wines/Angels for eg. take the money monthly but you can withdraw it in full any time you want, they just keep it like a bank rather than with a commitment to spend).
During a family finances audit recently DH questioned the subscription and I explained why I wanted to keep it, but ever since I’ve been umming over whether to retain it or not.
This email, sadly, made the decision for me.