[Closed] Pannier gone AWOL on South Downs Way

I wonder if anyone can help reunite me with my black Altura pannier? I was cycling the South Downs Way from Winchester to Eastbourne. Late on Friday afternoon (7th August) my pannier, unnoticed by me, bounced off my bike as I cycled on. I discovered it was lost near Washington. I retraced the route for about 4 miles and asked several other cyclists and walkers if they had seen it, but to no avail.

It contains: a sleeping bag, a wash bag, a small tool kit, a first aid kit and a small LED light. If anyone knows of its whereabouts please could you let me know. Many thanks, Steve