We moved into our new house 1 year ago, the neighbor came and introduced herself at first and seamed ok but very snobby and stuck up but I was friendly and nice because that’s Just who I am. As time went on we didn’t see her again and she ignored us in the street. One day she came to our door shouting at us because we had put a shed in the garden and she complained about it and told us to take the contraption down. We then noticed a lot of dog poop in our front garden and checked our cctv and she had been bringing her dog into our garden late at night to let him poop!!! We now have put some decking in our garden and often sit there on a night time and she’s been coming into her garden and the fence is 6ft tall but has gaps inbetween each fence slay and she waters her flowers then squirts her hose through the fence to where we are sitting then runs in her house. Who do I complain too?