"User 'XXXX' is not authorized"

Hi,

My company set up an account for World Pay today, i understand i wont have access to the live API for the first 24 hours whilst World Pay do checks their side.

But my understanding is my credentials would work the test api? (link below)

https://try.access.worldpay.com/payments/authorizations 

Will my access start for test at the same time as live?

thanks

Chris