How can I add collateral during a margin call?

To add collateral, you’ll transfer more of the same asset you originally pledged to the custodian address you used the first time. If your collateral is XRP, you must include the destination tag shown with the address, or the deposit cannot be credited automatically. This address is also displayed in your Milo dashboard under the collateral section. Once the transfer is confirmed, your updated balance will appear in your account, and your margin call will be cleared.