6 years from 18/08/2021 is 18/08/2027.
You already have a CCJ. It's the record on the Register of Judgments, Orders and Fines that you need to care about.
Pay DCB Legal in time and keep a record. They say that they will remove the record. If they don't, you can separately apply to do so with proof of payment.

Or don't pay - I don't care - it's up to you. I'm only giving you advice.

Many many claims go to court in the sense that bulk litigators issue county court claims. It costs them nothing. Anyone who doesn't respond in time gets a default judgment against them, again costing the claimant nothing. It's only when cases are defended that these cases are discontinued, because the claimant is then required to pay a court fee. Please don't think you're "unique" or in a "small percentage". Because you're not, we are able to advise you based on the multitude of similar cases.

I've not followed the correspondence but assuming tincombe is right that witness statements can be made saying reps were made but no notice of rejections were received then the council must refer the cases to the tribunal. 

I'll just say that the second PCN should be cancelled as it is a continuous contravention on double yellow lines (I assume the car didn't move) but this will need pointing out depending on what action the tribunal takes.

Lambeth did respond after reps were made but with an extremely vague letter referencing a previous letter they had sent. It did not explicitly reject my reps.

Correct, the car had broken down so had not moved between the 2 PCNs.

Is this hotel on the airport land?

It's right next to the airport but not within it

The entry and exit times are still fully visible in 2 locations, on the photos as time stamps and above the photos in text.
The key missing information is the date it was sent but seeing as event was the 28th of September and you started a post here on the 8th of October Im going to go out on a limb and say the PCN is POFA compliant in which you admitting to being the driver here isnt really going to be a major issue as you will be haeld liable as keeper anyway. This will play out as follows:

You will appeal, unless you can come up with a more substantive defence than above it will be rejected.

You will appeal to POPLA with the same outcome.

You will get debt collectors letters for a few months.

You will receive a letter of claim.

If that is from DCBL Legal you will have to through the dance of providing a defence and taking part in meditation. It will probably get dropped before court.

If the LOC is from Parkineye it probably will go to court.

On the balance of probabilty with your current defence you will lose.

You then pay the increased invoice value or they issue you with a CCJ which will screw up your credit rating for 7 years.

Do you want to wade through the process for the next six months and hope its DCBL Legal or do you want it gone from your life?

None of the above is guaranteed but it is the usual process.

Thanks for that, not entirely what I was hoping for but not unexpected either

You would need to apply to set the judgement aside - this has a cost associated, with no guarantee you'd get it back. If you choose to go down this route, we can advise on challenging the underlying parking charge.

I note you mention speaking to Step Change, which suggests you may have wider debt issues. It's not the purview of this forum to offer debt advice, so I don't expect or want you to provide any background here, but if you do have other debts beside the two parking CCJs about which you have posted on here, you may wish to continue seeking professional advice as to the best options for you to take. It may be the case that the money you'd have to front up to challenge this matter could be better used elsewhere. But that's not for this forum to advise on.

I do have other debts, however with the help of step change, i am making progress towards them. I would find it incredibly difficult to obtain any credit and fix my credit report for the next 6 years. I am 30, therefore this is a critical point in my life for future advancements.

I would like to explore options regarding this. This is obviously 6 months down the line and i could satisfy the debt or ignore it for 6 years. Both will be detrimental.

I think once i get the case specifics, i shall update here to see what the original contravention was and how best to resolve it. At that point i will decide which action to take.

I appreciate your perspective on this.

Would you be able to direct me of how to obtain any contact information for CNBC please?

Kind regards