The reason why you are not able to deposit certain assets in your Quadency account depends on the availability of the asset per region.
Deposits for both QUAD, USDC, and USDT are currently open to all users that are based in the countries of our supported regions.
All US residents & citizens can deposit USDC & USDT. Please note some limitations are applied at the state level. If you have trouble depositing into your Quadency, please feel free to reach out to our Customer Success team for assistance.