Creative Designers Ltd. agrees to redecorate Carmen's home for the sum of $20,000.00. The services are to include completely redecorating the living room, den, and dining room. The work is to start on May 1 and be completed no later than August 1. After work begins, Carmen changes her mind about the colour of the paint she wants in the den and the type of carpet she wants in the living room. She also wants Creative Designers to redecorate the hall and the foyer. Creative Designers agrees to make all the changes. However, the work is not complete on August 1. Carmen claims that Creative Designers is in breach of contract.

What arguments may Creative Designers make? Explain