Anna purchases a wedding dress and takes the dress to jessica for alteration. Anna and jessica agree that anna will pay jessica $75 for the alterations. After jessica begins working on the dress, she has second thoughts. Jessica contacts anna and advises her that the alternations will cost $150 instead of $75. Because anna’s wedding is in just two weeks, anna reluctantly agrees. Once the alterations are completed, anna pays jessica the $75 originally agreed on. Is jessica entitled to the additional $75?.