Originally Posted by
craigthemif
Why?
I'm not aware of any airline or hotel programme that lets you close down an account online. Imagine the fun if somebody hacked your account details and shut them down for lolz...
I have successfully closed a Flying Blue account, all it took was an email. Considering how easy it is to spoof an email, I'd say it's just as easy as clicking a button online.
OP, try writing an email, maybe it's all it takes.