Please check out Visa Partner at http://partner.visa.com. I recommend that you apply for the Fast Track program, which is available in all regions and was created specifically to support fintech startups looking to launch their first card program. In order to apply you will need to create an account first, and can then submit an application from your dashboard after logging in. Please note that you will want to select your primary country of business when applying. Once your application has been submitted, a Visa fintech team member from your region will reach out to you directly.