Picture posting is enabled for all :)
the fact that the communal heap is adjascent to your plot, and that you hadn't moved it, but just covered it up with a bit of carpet makes the situation a tricky one. are your plot boundaries well marked? can you post a photo of the general area, and of the site where the manure was?
If the OP regards this as theft which of course it is as there hasnt been any other explanation as yet why hasnt it been reported to the police???? It would have been my second action after trying to speak to the new plot holders and posting on here about it would have come later when I had the full facts.
I wouldn't be as charitable as RBT because I wouldn't have another £50 to fork out. It's theft. If you've left your phone number and given them a chance to explain / apologise / put it right and they haven't then I'd do 3 things.Leave another note telling them that you are doing the following: Make a written report to whoever runs your site, explaining what has happened and letting them know you will be reporting the matter to the Police.Report the matter to the Police.
I thought that there was a general rule in life that you don't go on someones land without permission, don't steal, you are polite to your neighbours and be charitable to those less fortunate... my wife says that I live in cloud cuckoo land...