It's still early days. Her baby will feed once baby has the chance.
I wonder why are they giving formula if she's pumping? A baby this young would typically only have a very small volume of colostrum and be fine.
You can help by passing on info on normal baby stuff: so before milk comes in, 1 wet nappy per day of life, poos changing from black through to mustard after milk comes in, then 2-3 poos per day, 4-5 wet ones. This is the easiest indicator for mums to track.
Also would suggest mentioning laid-back nursing, which is a great way to harness baby's natural instincts to latch and feed, and relaxing for mum, too.