The feature that allows you to provide liquidity to margin traders is called Asset Lending, and is currently available only in our Classic Dashboard.
You can use your Quoinex credentials and Google Authenticator tokens to log in. Once you do that, open Main Menu (top left) and go to Accounts > Asset Lending.
If you have never set up a phone number with us, you will not be able to access Classic Dashboard. Phone number setting is no longer available on QUOINEX. For this reason, Classic Dashboard will also be unavailable to new users that registered from the beginning with Google Authenticator.