QIWI API how to make a payment?

Question

API

https://developer.qiwi.com/ru/qiwi-wallet-personal...

The documentation contains a great example of paying for cellular communications. I do everything by example. Interested in Python, if anything.

Error 400 occurs. Apart from translations, all other queries work fine.
requests and time do not forget to import.

I don't understand where the error could be.

Answer 1

here it is
https://developer.qiwi.com/en/qiwi-wallet-personal...
in Postman
from Postman - in Python requests