Lawn Star **** eater keeps cutting out

I took a Lawn Star LS900 in for repairs. Yesterday I went to pick it up. I was told that the filter was clogged with grass. After paying about R400 for the cleaning out of the grass and parts that I did not ask for, I tried it out today. The machine still does the same thing, cutting out every minute of use. Bye Bye Lawn Star you won’t see me again.