3) You give off an ‘I don’t give a damn’ attitude:
Employers want to give a job to someone who really wants to be at their company because that person is going to:
1. stay with them for longer and
2. work harder.
A slap-dash application littered with errors paints the picture of someone who doesn’t really want the job and has sent out dozens of applications that day. Ultimately if you care enough about the role you’re applying for you’ll triple check your work, you’ll look up any spelling/grammar queries you have on the internet and you’ll give your application to someone else to proof read.