Free Traffic Legal Advice

Thanks for replies guys.
So my error 0 instead of O.
It didnt highlight the error when entering reg no, or ever tell me it was wrong.
And never mentioned in any of the numerous comns ive had from them.
Guess ill.pay up

Morning all

My Car is NOT exempt from ULEZ charge

Three times In September I drove into London to use Heathrow T5
I went on Website via my mobile phone to pay charge. Twice it said my car is exempt and therefore the box you tick to pay the ULEZ charge was greyed out and not selectable and I was unable to pay.
I took a screenshot of the page at the time, as I knew TFL would likely fine me.

When the fines arrived, I appealled, explained what had happened and sent them the screenshots.
I twice recieved standard replies, that I needed to prove my car is exempt, to which I replied it isn't, but your website says it is and won't let me pay.

Having a fault on their website/database/software is not one of the reasons they have listed as the basis for an appeal and I think they struggled to understand, that there could possibly be any other reason

I've now recieved another letter rejecting my appeal, because I didn't send them a copy of my V5 to prove my vehicle is exempt !

Should I continue with appeals process or go via the complaints system to try to resolve this ?
Any other advice greatfully recieved

Thanks