Help! I moved into my property 5 weeks ago which had a large but very neglected garden. As the garden had been untouched for 20 years, with the help of family and friends I took advantage of the good weather and got stuck into a major clear up. The neighbours were delighted at the swift transformation and I kept all of them informed as to my plans. Five gardens have boundaries connected to mine so a lot of people could have been very concerned had I not kept the lines of communication open. During the clear up a large privet hedge was trimmed to 6 feet high and pruned back on the side to encourage new growth in the hope of attraction more birds into the garden. I have now discovered the neighbour whose garden backs on to the privet hedge is obsessed with not being seen both in their house and garden, as a consequence they have propped two lots of old broken fencing, rubbish, bags and anything else they can use to fill in the gaps in my hedge which is well within my boundary, I'm sure this will cause permanent damage to my hedge. What can I do about the situation as they are not open to discussion.