hey, yes, i do but like to practise bahasa

basically we have crypto already and want to withdraw it to BRI, but we are in Australia and need to 1) make account on Indonesian exchange so we can transfer crypto and withdraw to BRI and 2) im wondering will it matter if the exchange account name and bank account name are different.. ie; the BRI withdraw account will be in my wife's sister name, the exchange account will be in my wifes name
Great to hear that. Semoga bisa cepat lancar berbahasa Indonesia.
As mentioned by maamanda above, your exchange user name and your bank user name must the same if you're dealing with an exchange. Considering your situation, I still think P2P trade is probably one of your best options. You can make an offer on the Jual Beli board and use your sister's BRI account for the payment method. It might be risky, but if you're using sapta or other trusted members as your escrow, the risk will be lower. In addition to that, maybe your sister can act as a proxy to deal with the exchange, so you just have to send your crypto to her account. Pintu, Tokocrypto, or Indodax, should be newbie-friendly enough if your sister is new in this business.