Wrong advice - nursing bras

I.e. as looking for nursing bras as I was just about to give birth in the next 3 days. So I went to woolies as I believe their nursing bras are good quality . I went there on 8 December as my baby was due in 11 December 2015.inwas helped by a lady who was working at the underwear section and I asked her to measure me before I buy a nursing bra as I didn't want to buy the wrong size. She measured me and said inshouldnfer a 38 DD. As per her advice I bought the nursing bras and bought 4of them . I got to hospital after giving birth and noticed that the bras were the wrong size . As I had already now given birth I needed to use them - I had a c section and was in hospital for 4 days and had to use them but my breasts kept coming out of the bras as they were the wrong size. I needed a much bigger bra cup size. Very disappointed with the service from Woolworth's. It was a waste of my money as I can't use the bras as they are small