Connect to your Web3 wallet (such as MetaMask) and make sure your network is set to Binance Smart Chain. Click here if you do not have the network in your wallet yet
Go to Senior Tranche under "Your Positions" and select the Senior Bond to redeem
Click "Redeem"
After clicking "Confirm", you should get a pop-up notification in your MetaMask to accept the transaction
Wait for the transaction to be processed
Once the transaction has gone through, you should receive BNB, BUSD, BTCB, or ETH if you bought a BNB, BUSD, BTCB, or ETH Senior Bond respectively