There has been even more confusion than usual this year as the annual 'uprating' letter (which confirms your award and tells you what you will be paid for the next year) has been very late in some cases.
We have had a lot of members who don't know whether they have had an uprating letter or a decision letter, there often seems little difference between them!
Were you previously in the Support Group? If not, this is clearly a decision letter. If you were, then it is rather more difficult.
Does the letter explain what to do if you disagree with the decision? A formal decision letter must include this.
The decision letters do not tell you when you might be reassessed as this information is only a guideline and does not form part of the decision.
In the end, I'm afraid that many people have had to contact DWP to find out what is actually happening