Neptune
It sounds like a Decision Letter.
The date in November is an administrative date related to the payment of the Christmas Bonus, it's not impossible that your claim will be reviewed in November but it won't be as a result of this letter.
You can find out what the reassessment date is by contacting the DWP office dealing with your claim.
GOrdon
Nothing on this board constitutes legal advice - always consult a professional about specific problems