Was promised a same day visit (before 18:00), and told they would call before attending. I didn't hear back from them, so I called at 17:30, and was told that they tried to call me several times. I asked for the number they were calling me on, and it was incorrect. Not even vaguely similar to the number I gave them earlier. Regardless, I was told that the engineer is still attending. End of the day, and no engineer. I stayed in all day, and did not go out for work, hence I lost salary. After I complained, I was offered a 10% discount, which amounts to £6.90, and I refused, given that I had to stay home, and lose much more than that.