Got measured today at Victoria’s Secret today

Well I’m 13 and today my mom wanted the ladies at vs to measure me. Well I’ve been wear a 34B. Now the lady measured me and gave me a 32D and a 32DD to try on. Well I wasn’t really paying attention when she was talking and just tried on the 32DD. She comes in and checks well I’m wearing a 32DD Demi bra and my boobs filled the cups. I’m just wondering if she did a shit job or that’s the actual size I need bc I see lots of women say that vs measures wrong. (Also wasn’t sure where to post this)