I would say that overall, e-liquid subscriptions became 'so last year' about 18 months ago.
The whole concept is on the clock as we speak. They never work out as cheap as they make out.
DIY is the way forward, or just keep buying the stuff you know you like.
It might be different elsewhere in the world, but overpriced juices at supposedly special rates is close to the end. They (the schemes) might disagree, but
vaping is under enormous threat across the globe and the customer base is eventually only going in one direction.