have you tried UK brands? based on your sister size info it sounds like you’re only looking at US brands and in that case you’re right 30H/32G is impossible, but the equivalent size 30FF/32F UK is actually pretty easy to find. i’m in the US too but UK brands are easy to find online here for reasonable prices with free shipping & returns as well. they also tend to fit larger chests better bc they tend to have a more projected shape, but it depends on the brand and the specific bra. if you found custom stuff that works for you then i’m glad for you!! but if you haven’t yet then definitely check out UK brands! freya and panache both carry several styles in a 30FF, example for $42 - https://a.co/d/0dNUNS8H
