PCN Ticket, your position is now quite straightforward. The TEC order from 08 October revoked the Order for Recovery and cancelled the Charge Certificate. That means TfL should not have retained any enforcement fees or surcharges. The £420 paid to the bailiffs, the £80 surcharge, and the £9 TEC fee, totalling £509, are all recoverable.
You have paid the £160 PCN following the tribunal’s decision, so that part is done. The tribunal does not override the TEC order and cannot authorise TfL to keep sums beyond the PCN itself. That is now settled.
Your next step is to write to TfL, refer to the TEC order, and request a refund of £509 within 14 days. If they do not respond or refuse, you are entitled to bring a money claim in the county court for restitution of the unlawfully retained charges. You may also raise a complaint through their complaints process and escalate to the Local Government Ombudsman if needed, but the small claim is the most direct and effective route.
You are in a strong position. Best to now act on it.