Appeal for MR and expect to be turned down again then appeal for Tribunal.
I think it's awful when they send the letters and say that if you appeal then someone else will look at the claim and could decide to remove any points already awarded. Just ignore that.
I had to go through the system to Tribunal, the assessor for my relative was a nurse, she was fine for the daily living section and understood and awarded enough points, (relative has other conditions besides ASD) but she didn't understand anything about autism and the inability to plan a journey, the comment was something like attended mainstream school with no support therefore got x GCSEs, therefore can plan and undertake a journey unaided, which was untrue. Even the amount of GCSE's that relative attained wasn't true, because the assessor never asked, just assumed.
Also, relative's Blue Badge was up for renewal during the appeal process so they had to attend the Council offices for a Blue Badge assessment by the council's physio. This is despite having had a Blue Badge for 9 years, because the renewal conditions now state
people must have enhanced mobility PIP. Ironically the Council's physio scored the relative's mobility as much less than the ATOS assessor and granted the Blue Badge, so that evidence also helped with the mobility part of the appeal at Tribunal.
Start making your case for appeal now, when you ask for MR, their letter will tell you to reply "within a month from the date of this letter" but the date on the letter will be about a fortnight old, so in reality you only get a couple of weeks to reply.
Always send information by Post Office Tracked, then when they tell you (like they told me) your submission was received after the cutoff date, you can (like I did) print out a screenshot of the PO information showing who signed for it at DWP what time they signed for it and what date. When you write to them with that information asking why they have said the submission was late when you have proof it was received well within their deadline, you don't receive a reply.
The whole system is designed to intimidate people, that's not how it should be, and when you consider that it's designed to intimidate disabled people, it makes it even more vile.
At Tribunal, our Judge was fantastic, apologised for us having to attend because all the panel members independently agreed that our evidence should have initiated a PIP enhanced rate of both components on initial application and he said that if the DWP had bothered to turn up to the Tribunal hearing, he would have made them apologise to my relative too. Awarded enhanced rate for both components with "it is inappropriate to fix a term"
You have to fight, you have to be aware of DWP's unpleasant tactics and you have to provide as much evidence as you can. The time it takes to get to appeal gives you opportunity to amass more evidence if you need it.
You CAN do it! 