How to make Qiwi fields auto-filled?

Question

Payment systems

Hello.
Qiwi has the ability to make the form fields filled out. Here is an example .
Does anyone know how to do the same for the nickname Qiwi? Is it something with this form that needs to be conjured or what?
If it's not difficult, draw an example with a nickname.
I will be very grateful!

Answer 1

See the link and follow the analogy:
https://qiwi.com/payment/form/99999?blocked[0]=acc...