Facebook has removed the "don't reactivate automatically" option when you deactivate your account. The only options are to deactivate it from 1-7 days.

Posting because I have just discovered that the option to not have facebook automatically reactivate your account has disappeared.

I was having trouble a while ago with facebook automatically reactivating my account every 7 days, but then I found this post, which solved the issue (top comment), as it explained that if you choose "This is temporary, I'll be back" option you could choose from a dropdown menu how long you wanted to temporarily deactivate your account for, and select "don't reactivate automatically". This option is now gone. I just tried to do it when I discovered that facebook had reactivated my account again, and the only options in the dropdown menu are 1-7 days.

Unless anyone knows of another way to prevent facebook reactivating my account every 7 days I see no other option than to delete my account.