PIP F2F - health impact of unreasonable journey

I have been on DLA higher rate for both care and mobility since 2008, and was informed in April 2014 that I would need to apply for PIP. I had to rearrange the first appointment I was sent for a F2F in late December, and asked for one closer to home and later in the day. (The original was over 45 minutes away at 9 am.) Subsequently I received an appointment for 8.45 am, even further away, but had no option but to go as I'd already rearranged once. A friend picked me up at 7, and dropped me off at the assessment centre at 8.43. I was in agony. It had been a struggle to get up in time to leave home, and was then trapped in a car (even one with heated and adjustable seats) for 103 minutes. (Normally I have to stop frequently to change position, stretch, etc. to ease my back and pressure on the sciatic nerve.) I then had to wait about 20 minutes as the appointment started late, but fortunately lasted only 35 minutes. I was in such pain that I omitted to mention the things I couldn't repeat or do safely, when being asked about some domestic tasks. The assessor recognised I was in so much pain that I couldn't attempt any of the functional movement tests, which I knew I couldn't have managed anyway. It took over an hour to get back home, so a round trip of more than 4 hours and over 100 miles. (The maximum journey is supposed to be 45 minutes, according to the guidelines.) That journey and the whole experience have triggered yet another prolapsed or torn disc, and I am undergoing investigations, but I am incapable of doing anything and in even more intense pain than usual. I have just heard that I have been awarded Enhanced rate for mobility but Standard rate for care. Is there any point in me complaining about the unreasonable journey and the impact it has had on my condition, etc?

It was ATOS who carried out the F2F. Sorry, I realise I did know that it was 90 minutes, but for anyone with my kind of incapacity, especially as I'd specifically asked to be somewhere closer because of my condition, I still think that 103 minutes there and 70 minutes back is unreasonable, as is demonstrated by the effect that it's had on my health subsequently. The whole thing was a terrible physical ordeal. I don't know whether to appeal the decision on Standard rate, when I'd been on the Highest by DLA rules, as the thought of having to go through any kind of further process is beyond me at the moment, the way I'm feeling.

Many thanks, Gordon.

Ironically, ATOS has an assessment centre in my home town! I will review the scoring against the criteria - I think when I did that originally against the calculator I did come up with a highest rate score, but I will double-check it.

If you think it's still worthwhile pointing out what they are putting people through simply to get to a F2F interview, i.e. that they might in time change their guidance so that others don't have to go through the same experience, I will write to ATOS setting out my complaint/concern.