Hi scoobydooby,
I used to work for Boots when I was doing my A levels on the Pharmacy counter as a healthcare and pharmacy assistant. My contracted hours were Saturday and Sunday; however, I used to help out on other days during the holidays as long as it was not detrimental to my studies.
I have just looked through my papers in the study to see if I could find an old pay slip to answer your question. Sadly, I have disposed of them all as I stopped working for them 8 years ago!
I have a feeling that I was not paid for the two fifiteen minute breaks, perhaps some later post will clarify this point.
I have got to say though that I was very impressed when I worked for them. I even got a transfer to my Univerisity town when I finished my A levels, and I used to work there term time, and at home during the holidays.
Sorry that this does not answer your question fully, however, I have a feeling that this is standard across the board inasmuch that staff are not paid for any breaks.
Cheers,
Scott