Trying traps & baits again while I try to find a pest control company that does mice!

Another question re it not being the landlords problem.... what if there is a MASSIVE hole in the laundry wall (its on the condition report)?? Because they will quite easily get access to the house & walls via it. I heard them in the bloody walls last night! I honestly want to cry, my benches & oven are covered in poo again. I think I might call consumers affairs on Monday and get their thoughts, because honestly there is no way we can block access points to the house to stop them getting in as there are little cracks everywhere. There is a huge piece of wood missing at the top of the toilet wall, the windows in the laundry & spare room are 'layered'.... its hard to explain but there are about 3 panes of glass that open/close together, and even when shut there is a slight gap between panes.

Really want to move lol, and just deal with it afterwards if need be. Buuutttttt that wont happen because of the dog >.<