Apart from a PCN content error, the other avenue is to check the TRO for Lancaster Gate to see if loading is an exemption in the resident permit bays. However, why not submit representations that you were unloading luggage to the hotel prior to moving the car to <car park you used> . Point out the nature of the luggage was far too heavy and bulky to carry from the car park which was nearly a mile away. Post your draft here for review, thne submit it, and also their response when you get it