Keys - Skins - Cards
After buy You will get account with Game
Full ID + password
No another social media linked with account.
Check account profile and change account information here: https://account.mihoyo.com/
Please change your information after checking your account, changing your email, changing your password, and adding your phone number.
Try to avoid those activities that can raise the suspicious level like constantly fail login attempts; switching login device too many times or too fast; making in app purchase too soon (need to wait for 2 weeks at least if you want to do in app purchase), change region...