Am I statute barred? what to do next?

Thanks for the reply Sourcrates,

I have no records or bank statements etc going back that far as a lot of it was lost when we moved house mid 2011 after being repossessed. There's no mention of this debt on my credit file either although I know that this does not really mean much.

The only statements of account they've sent go up to 2009 so shouldn't this mean that the last payment towards the debt was up to 2009? If payments were made since then shouldn't they have been included in the sent CCA request to show a full and true statement of the account?

If payments were made later, they were made certainly no later than early 2011, but my concern is that if this was the case, could their mis-use of the CCA request payment have reset the 6 year clock on statute-barring the debt? And if it has, should I then contest it directly with them if it proves to be the only payment made or should I then let it go to court and contest it based on the mishandling of the fee payment and their solicitors acknowledged this request and they took an excessive length of time (over 12 months) to supply the documents, and the statement range only goes to 2009?

The letter sent with the fee was as follows;

"Dear Sir/Madam
I do not acknowledge any debt to your company or its client(s).
With reference to the above agreement, I require you to supply the following documentation before I will correspond with you further on this matter.
1. You must supply me with a true copy of the alleged agreement you refer to. This is my right under your obligation to supply a copy of the agreement, under the legislation contained within s.78 (1) Consumer Credit Act 1974.
2. A full statement of account.
3. A signed true copy of the deed of assignment of the above referenced agreement that you allege exists.
4. A copy of any other documents referred to in the agreement.
I understand that under the Consumer Credit Act 1974 (Sections 77-79), I are entitled to receive a copy of our credit agreement on request. I enclose a payment of £1.00 which represents the fee payable under the Consumer Credit Act. Please note that under no circumstances should this payment be set aside any alleged debt. If you are unable to supply the documentation requested, this fee should be returned.
I understand a copy of our credit agreement must be supplied within 12 working days of receipt of this letter.
I understand that under the Consumer Credit Act creditors are unable to enforce an agreement if they fail to comply with a request for a copy of the agreement under these sections of the Act.
I look forward to hearing from you.

Yours faithfully"

I'm guessing the best course of action is to send the statute barred letter and gauge their response, but how long do they have to respond to it, as it took them over a year to get the CCA documents to me?

Again, many thanks