@duncedunce please don't make additional threads, we have a one-case-one-thread rule to ensure we can be as efficient as possible when giving advice.
The representation for this is very simple:
Dear London Borough of Sutton,
I challenge liability on the basis that the penalty charge notice has been served out of time.
Yours faithfully,
This will get the discount reoffered and will buy you a few weeks, but there's no rush so I wouldn't send this until the end of next week. As long as the representation is made within the discount period, the discount is almost invariably reoffered when the council issues a rejection. Make sure to submit it online and keep a screenshot of the confirmation page.
In the meantime I think we need to establish exactly what's gone on, so please contact the lease company as follows:
Dear Lease Company,
I am in the process of appealing PCN SU8012499A; in order to support my appeal please could you send me a copy of the penalty charge notice you recieved?
Yours faithfully,
Or if you can call them up and get them to email it to you that works too. My main concern is that we've not actually had sight of the PCN served on the lease company, also it might be that the lease company is not the registered keeper. It's possible the car is registered to a finance company that got the first PCN and then transferred liability to your lease company.
The good thing is the longer the chain back to the registered keeper, the greater the chances of the council having messed things up.
Also, please post up the terms and conditions of your lease agreement, depending on the wording there might be an additional ground of appeal.