To recast your DGX into gold bars:
1) Create an account at digix.global.
2) Log in, register your DGX wallet, and complete KYC.
3) Once KYC is approved, the recast section will be available on the dashboard.
4) Load your registered wallet.
5) Click on recast to proceed.
Please note that there will be a 1% fee to perform a recast and you will have the option to recast 100 DGX or 1000 DGX for 100g or 1kg gold bars respectively.
This means you would need to have at least 101 DGX tokens in your wallet to successfully perform a recast.
After these steps you are ready to redeem (pick up) your physical gold, which is done in person in Singapore or Canada.
For the detailed guide, please refer to - https://digix.zendesk.com/hc/en-us/articles/360043619332-Recast-Processes