Use the sign-up page with your email and password. If you have an invite code, enter it during registration and check the invitation page later.
What if I forget my password?▼
Use Forgot password on the login page. Verify with your registered email and verified name, then set a new password. Contact support if you have not completed verification.
How do I update account details?▼
Open Settings to adjust currencies, submit email change requests and view identity status. Sensitive changes such as email updates require admin review.
Cards
How do I add a U-Card?▼
Tap Add Card on the home page. Choose an available card and complete wallet authorization. The card will then appear in your card wallet.
Will card details be visible after authorization?▼
Yes. After authorization, the card wallet can show the full card number, expiry, CVV and cardholder. Sensitive details stay hidden before authorization.
How do I disable or delete a card?▼
Open Card Management to pause, resume or delete a card. Deleting removes the platform card record; revoke token authorization in your wallet or authorization page if you want to stop wallet access.
Wallet authorization
Which wallets are supported?▼
Common EVM wallets are supported, including MetaMask, OKX Wallet, Bitget Wallet, TokenPocket, Trust Wallet and imToken. On mobile, the page can open the relevant wallet browser.
Why authorize USDT and USDC?▼
The card flow needs a stablecoin allowance to fund or settle card activity. Assets remain in your wallet before an actual operation. Authorize only after you understand the risk.
Can I revoke authorization?▼
Yes. Revoke token approval in your wallet, or use the authorization management page to review bound cards and stop using them.
Payments and fees
What should I do if payment fails?▼
Check wallet balance, allowance, card status, network and merchant support. If it still fails, contact support with the card last four digits and time.
How is the exchange rate calculated?▼
The page shows a live reference rate that refreshes regularly. Actual settlement depends on the system rate and on-chain result at the time of payment or transfer.
How are fees charged?▼
This theme focuses on a low-loss U-Card experience. Exact fees, promotions and physical card costs are subject to in-app notices or support confirmation.
Still have questions?
Our support team can help with registration, authorization, cards and payments.
