I just spoke with one of the complainants who said the people in her block are STILL feeding the cats upstairs. She said after i went down, it stopped for a while, but it's started up again. She wants to know which other 'authority' she can go to.
I told her at the end of the day, there IS no other authority because what the people are doing isn't actually illegal. It's irresponsible yes, it's inconsiderate to the neighbours but it isn't WRONG. I asked her if there was littering - she does not think so. So what law are they breaking?