If the does not have an AstraPay account yet:
The requests a to .
sends an account link request to AstraPay.
AstraPay accepts submission.
AstraPay sends a URL redirect response to 's .
sends a 's URL redirect response.
The displays registration to .
The completes account registration .
The sends an account registration to AstraPay.
AstraPay performs account validation.
AstraPay sends a to .
NICEPAY sends notifications to Merchants.
The sends a informing that account has been registered to .
The to .
submits to AstraPay.
AstraPay generates transactions.
AstraPay sends a redirect URL response to .
sends URL redirect response to .
The redirects to AstraPay .
The verifies .
The proceeds with to AstraPay.
AstraPay performs verification.
AstraPay sends a callback to .
AstraPay sends a to .
receives .
sends a to Merchants.
The receives .
The sends a request to check by using Status to .
sends checking response to .
The receives final .
The updates to .