The claim is capped and would be transferred to the small claims track at your local county court. As already mentioned by
@The Slithy Tove, if you were so unlucky as to lose the claim in court, you'd likely pay less than the amount claimed. If you don't defend it, it will cost you more than if you don't.
VCS are a vexatious firm of ex-clamper thugs and are worth fighting. You have several good defence arguments. There is a robust Template Defence which would also include several preliminary matter points that would see to get the claim dismissed before it even gets to court.
Please show us the claim form, only redacting your personal details, the claim number, the MCOL password and the VRM and PCN number. Leave everything else visible. The Particulars of Claim are likely to be woefully inadequate.
Which roboclaim firm of solicitors are representing VCS?
Regarding the original PCN, what does your friends lease/AST say about parking? What it doesn't say is equally important. In many of these cases of PCNs issued at residential locations the PPC has no legal right to issue PCNs. Management companies bring these vermin firms in without following the law. In a majority of cases, the leaseholder/tenants lease/AST has supremacy of contract.
In simplistic terms, if the lease only mentions the the leaseholder/tenant has the right to park a car that is taxed and in roadworthy condition in the allocated parking space and there is no mention of a requirement to display a permit mentioned, or there is no mention on the lease about a third party being able to issue their own invoices for whatever reason to the leaseholder, then they have no right and the PCN should never have been issued and the claim is thrown out.
For now, please tell us the "Issue date" of the claim. Have you done the Acknowledgement of Service yet? If so, on what date? Do not use the MCOL to actually submit the defence. You will do that as a PDF attachment by email.