A loan top-up is an increase to the initial BTC collateral of your loan. Its goal is to increment the total BTC backing your debt, hence lowering the LTV level and avoiding loan closure due to a BTC price drop. You can top up your loan by signing into your account, opening the B2X or Dollar Loans tab and clicking on the button that says “Top-Up”.
The system will show you two options: 1) From Savings and 2) From external source.
If you choose the Savings option, you will only need to input the amount you want to send from your BTC Savings account to your loan. This process is instant, but you need to request it manually.
On the other hand, if you select from an external source, you will be shown the bitcoin address where you need to send the additional bitcoin for the top-up, as well as the QR code. Bear in mind that transactions are only taken into account towards the LTV when they have one (1) or more confirmations on the Bitcoin blockchain, so they may not arrive in time when the network is very congested and there is a sharp bitcoin price drop.