Ive got these annoying rats in my house and ive called council who did some inspection and left poison. Those bastards charged me £75 for it. It seemed to work for a while but they r back again. Ive used the glue mats and must have killed a dozen and blocked all the possible holes but they keep coming through kitchen. So what should I do?? Is there any good company anyone knows of or what DIY product is the most effective?