Account & membership
Create or recover device access, verify a public Base wallet, and view your account record.
Official support
How can we help?
Get help with GCA accounts, member access, browser tools, wallet verification, official market links, or a security concern.
Official emailsupport@gcagochina.com
NetworkBase Mainnet · 8453
AccountEmail + device access
Sensitive dataNever required
Help topics
Start with the right route.
Use the account interface for account-specific records. Use official public pages for contract, market, and product questions.
Open member account →
Product tools
Learn how GCA research, planning, risk, backtesting, and review tools work together.
Wallet & contract
Confirm the Base network, official contract, token identity, and wallet display details.
Market & liquidity
Check the official GCA/USDT pool, market trackers, quote asset, and swap route.
Security concern
Report a suspicious link, impersonation, wallet prompt, contract concern, or reproducible issue.
Project information
Find the project overview, operating responsibilities, whitepaper, brand assets, and official channels.
Support request
Include enough context.
- SubjectAccount, product, wallet, market, or security
- Public wallet addressOnly when relevant
- Transaction hashFor an on-chain question
- Page URL and screenshotFor a display or product issue
- Expected outcomeDescribe what you need help with
Security boundary
Never send secrets.
- Private key or seed phraseNever
- Wallet password or recovery codeNever
- Exchange API secretNever
- Withdrawal permissionNever
- Remote-control accessNever
Official identity
Verify before sharing evidence.
Support only recognizes the Base Mainnet contract and official GCA/USDT market route shown here.
GCA contract0x3197c42f4a06f7be32a9a742ac2a766f0ff682c6
Official pairGCA/USDT
Official pool0xfe6a598bf738d7eec9640897064ca3a490128d3d447ced96077aef8e9dd1c1d0
Base USDT0xfde4C96c8593536E31F229EA8f37b2ADa2699bb2
Official channels
Contact GCA from a verified link.
Official support will not contact you first to request a transfer, signature, password, or recovery phrase.