How to Appeal a Horizon Parking Charge

Horizon Parking runs ANPR enforcement across supermarket and retail sites nationwide, which makes its most common charges classic retail-park cases: alleged overstays and 'failure to register' at sites people were genuinely shopping at. These are breach-of-contract demands, not fines — and genuine-customer evidence carries real weight.

Grounds worth raising

▸Genuine customer — receipts or bank statements showing you were using the site's shops undermine the loss the charge supposedly represents; many retail landlords instruct cancellation for genuine customers.
▸ANPR double-visit error — two same-day shopping trips read as one marathon overstay is the classic ANPR failure.
▸Keying errors — in-store terminals where you register your plate produce constant typos; a one-character error is a recognised genuine mistake.
▸Signage — entrance and tariff signs must be prominent and legible at the time you parked.
▸POFA 14-day window — a late Notice to Keeper can't transfer keeper liability.

Process

Appeal in writing within 28 days with evidence — and for supermarket sites, it's also worth contacting the store manager in parallel, since retailers can and do instruct operators to cancel charges issued to genuine customers. On rejection, use the independent appeal service named on the letter (POPLA or the IAS) within its deadline.

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Frequently asked

I was shopping in the store the whole time — do I still have to appeal?

Yes — the charge won't cancel itself. But genuine-customer evidence is strong: appeal with receipts, and raise it with the store too. Don't just pay it.

More guides

This guide is general information about UK parking appeal processes, not legal advice. Operator trade-body memberships and appeal routes change — always follow the route and deadline named on your own notice and rejection letter.