I have an Australian company and will need to start an LLC in Michigan to get Product Liability Insurance on products that we will sell to the USA. The products are sold online and then shipped from a fulfilment house in Michigan. Will I need to open a US bank account or can I still use our Australian business bank accounts?
Technically, you should have no problem opening a bank account for your U.S. company in Australia. A bank might require you to present them with certified copy of Articles of Organization with Apostille, and possibly a Certificate of Good Standing, also with Apostille, but this is something you should ask them directly.
The real question is what exactly do you need the bank account for, and based on that you will be able to decide where to open it. I invite you to read our article dealing with non-U.S persons opening bank account in the U.S.
(a) You made a typo in the card number, CCV code, expiration date, name or address;
(b) Your card balance is too low;
(c) Issuing bank has declined this transaction for some other reason related to your account.