Pip reassessment results and car tax

Hi many thanks so much for all your help and the guides on here. The dreaded brown envelope arrived yesterday for my PIP reassessment decision and I've been awarded the same as before - enhanced for both for 5 years. The assessor had recommended 4 years in her report but the DM increased it to 5.
This is my timeline for my reassessment:-
11th Jan - form arrives 1 year before the end of my award
1st Feb - they receive my form
21st May - I received letter stating I would need a home assessment on 5th June
5th June - home assessment
7th June - they receive my report and I phone to request a copy
10th June - I receive my report - it's full of inaccuracies and lies!
21st June - Letter received saying they have all the information they need to make a decision
24th July - letter received with my decision

I've noticed that the certificate of entitlement to free car tax wasn't in my decision letter like it has been in the past. I noticed in my assessment report she put that I don't drive, but I do and don't remember her even asking this question! Does it now arrive separately? Shall I call them?

Many thanks again.

I’ve just phoned them and the man said he would post the certificate for my car tax out to me today, said it should have been on the back of my decision letter and apologised.

Many thanks.