Client: We are very disappointed that it took you an extra day to do this project.
Me: I understand. However, the project was nearly twice as big as what we agreed on, a fact I pointed out to you in advance. Additionally, the overall time I billed for this assignment was 25% less than what you originally budgeted – as always, you got more work for less money.
Client: Yes, well you have far too many errors in the copy and pictures you uploaded
Me: Per your storyboards and emails, the errors existed in the content that I was given. You made the content.
Client: Still, I feel you should give us a further discount for content errors.