How to delete a Yandex / Яндекс account?
The description of the service:
Yandex N.V. (Russian: Яндекс) is a Russian multinational technology company specializing in Internet-related services and products. Yandex operates the largest search engine in Russia with about 60% market share in that country. It also develops a number of Internet-based services and products. Yandex also has a very large presence in Ukraine and Kazakhstan, providing nearly a third of all search results in those markets and 43% of all search results in Belarus.
All your data is stored on Yandex services tied to your account. Removing the account, you also delete all the data on the services — a letter in the Mail, pictures on Photos and stuff