Dell asks stupid questions

Tried to log a support call for a monitor and one for a faulty button on a keyboard.<br> <br> What further testing needs to be done<br> <br> External monitor works and laptop one has a smudge on the screen. It is clearly faulty so come and replace it.<br> <br> And as for a keyboard. I push the ./del button by the num pad and it doesn't work. What more testing could you possibly need to come out and replace the thing? We bought several Dell's and they not even a month old. Now I need to go to my client again to stare at a problem and for Dell to decide that I have actually given them the correct fault.