Blackhorse finance

[Hurt2017]

I am after some advice if possible please if anyone could help.

In 2009 I purchased a car with blackhorse motor finance and then halfway through 2012 I couldn't keep up with payments (was was 5 year plan) I was advised through a face to face meeting at home to hand the car back but having not paid up to half the value of the car I had to carry on paying the full value as to which I'm still paying 8 years on. Black horse sold my debt and is now with Cabot.
Over a year ago I spoke to them regarding history on the debt which they said they do not have the history. So I then contacted blackhorse and at first they said because the finance was so many years ago they didn't store this information for any more than 5 years . Then all of a sudden a month or so later I received a letter from blackhorse stating (I can't seem to attach my letter but I quote 'they cannot be certain that they always agreed the best approach to assist me whilst my account was with the collections team and that I was charged additional interest, fees and charges' they took £579.00 off my debt. My initial feelings is that they are covering up and offering a gesture. I called to ask for all my data under data protection act back in November when I received the letter. I am still waiting for this information.
any advice would be greatly appreciated.
I just don't know where I stand with this and if I could fight this matter ?
Thanks

[Hurt2017]

Not sure if R0b you could help?

[R0b]

Hello

Can I ask why you are only now raising the issue about your subject access request, is it because they have sold the debt? Really you should have dealt with this back in December or January if you didn't receive any information. You can still complain to the ICO that it hasn't been actioned or you can issue legal proceedings and ask a court to make an order to deliver up the data they hold about you.

Doesn't look good that you've sat on this since November and only now decide to want to do something about it but that's just my opinion.

Have you been keeping track of how much you've paid under the agreement 8 years is a long time to pay something off unless you have been making nominal amounts.