Adding A UK Additional User To Authorize.net Account?

Would this be possible?

I got a guy from the US to create an Auth.net account, but I also want to be able to access the payouts so they come first to my bank account.

Is it possible for me to add myself as an additional user (from the UK)

Yeah it looks like authorize.net recently changed to only supporting north American businesses. Seems like their payment gateway information on shopify.com is outdated Why do you want to use them it'll be more expensive for you the shopify payments.