I can't log in to the web version using my phone number
You can't use an account created from a telephone number to log in to the Yandex Music web version. You can only use this type of account on a single device. If you want to sync your music between the app and web version, log in with a Yandex or social media account.
If you signed up for a subscription using an account based on a phone number, email customer service and we will transfer the remaining paid days to a different account.
It is not possible to transfer tracks that you downloaded. You can, however, copy your playlists to a different account.