To set up a Visa Desjardins account, you will need to first become a Desjardins member by opening an account with a Desjardins financial institution. Once you have become a member, you can apply for a Visa Desjardins card online or in person at a Desjardins financial institution. You will need to provide personal information and proof of identity to complete the application. Once approved, you will receive your Visa Desjardins card and can begin using it to make purchases.