In the Payment history section on the Yandex Pay tab, you can view the latest payments made in Yandex. You can easily sort your expenses by services, find receipts in payments, and visit the services you used.
The page shows the movement of Yandex Plus bonus points: your welcome points, cashback, and payments using bonus points. You can view all actions with bonus points in a separate section.
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You can read more about issues with Yandex Plus in Yandex Plus Help.
You will probably find the information you need on the My services and subscriptions page. If you can't find answers to your question, please use the feedback form on the subscription FAQ.