Terrible Customer Service

Just the wost returns service in the history of the world. Bought a new petrol lawnmower and within a week it was back. New engine replaced. Then with two weeks, it dies again. Take it back, wait 6 weeks, and it has been serviced. Then a few weeks later it is in again, 6 weeks later it is back and its engine has been rebuilt. Then it happens again and once more after that. Used for a total of 6 hours over the course of 8 months. After what can only be described as the most heated and drawn out battle of wits with the manager, we finally get a refund, but not without tutting and having to get very very annoyed.