that's kind of double edged sword. If Apple would be to mask your purchases, they would most likely have to know about what the purchases are to hide them from the Bank. But in current state I assume (based on the infographic I posted in separate comment), that Apple doesn't know about the purchases much, thus they are not masked on the bank's side.
But I am no expert in this matter, so I may be wrong.
a lot of people use RSS and many sites provide the feeds