Fifteen-year-old Tanya entered an 'apprenticeship' contract for three years which required her to train 12 hours a day, seven days a week and perform only in shows arranged by Ramona, a famous ballet teacher. In return, Ramona promised to provide Tanya with room and board and £25 a week spending money. Ramona had an option to renew the contract for another three years. When she turned 17, Tanya took up a part-time position as a cheerleader for a basketball club and this caused her to miss some lessons and ballet performances. Ramona sued Tanya for breach of her contract of service. Advise Tanya whether Ramona is likely to succeed in your jurisdiction.