I started a job on Friday cleaning a private house, they want me to do 2 days a week and told they wanted me to do 3hrs a day, I done my first day and when I had finished she has said to now do 2hrs on a Tuesday and 3 on a Friday, the thing is the amount of work took me the whole 3hrs and now worried about them expecting me to do the same in the 2hrs on the Tuesday, please can anyone help with what I should do.