All about money

We have the above company building next door I have contacted them after checking the lawful building hours. We get woken up before six every morning with the noise of the workers which is not allowed they off load big trucks after six pm which is not allowed they work Sundays which is not allowed when you send an email the only response is \I will check"seven hours later they still working. Or the response is \"" at least you don't have vagrants on a vacant property\"" surely the law is the law? No working before 6am or after 6pm and no working on Sunday very simple."""