Try replacing 1-4 with 2-4, this is it works for me. This should only work for those who has access level from 2 to 4, but not higher and not lower.
Moreover the message NOT be must shown to all those who join the channel, without any established access level.

πŸ…ΈπŸ†πŸ…² - 𝔦'𝔱𝔰 𝔸 π•‚π–ŽΙ΄π™™ ᴏ𝙛 π•„π™–π–Œπ™žπ™˜