How to get Ajax-Token for authorization on the site?

Question

Python

Good day. Recently, I can not get authorization on the tele2 website using a post-request. When sending a post request, in addition to the phone number, the headers are passed, among other things, x-ajax-token and X-csrf-token.

X-csrf-token is explicitly present in the code of the page https://nnov.tele2.ru/lk , but I still haven’t figured out where it comes from x-ajax-token.

Perhaps this is some data associated with a specific phone number, encrypted using SHA256. From observations, substituting the x-ajax-token received by the sniffer into the post-request for a specific number, it works, for the rest it does not .... Any ideas and advice?