My daughter has been wearing bras for a couple of years now. We have always gone to M&S, taken a selection from the Angel range and I have fitted them for her.
I think she needs a bigger size, though she cut all the labels out of her bras so I do not know and can't remember her size.
We went to M&S on Sunday and had an unfortunate experience with the fitting room assistant interfering and taking the bars off me and saying that I should not have chosen wired bras from the Angel range for DD. We ended up not trying any on nor buying any. DD now does not want to go back to bra shopping at M&S. I thought I would get some online and fit them at home.
Forgetting M&S, which brand do a good teenage range? I think she is 28A or 28B.