Dwolla Sandbox and Retry verification status

I have successfully created a Sandbox user with a verification status of retry.

If I re-send the same user information, but with a random 9 digit SSN, and with the same first name of retry, what is the expected response from the Dwolla Sandbox API?

I ask because it seems like I sometimes get a response with a verification status of kba, but sometimes I get retry again. Is it expected to be random? Or should I expect a specific verification status in this scenario? I am just trying to understand the Sandbox behavior in this situation.