MetaMask's Knowledge Base
MetaMask has a very good knowledge base.
They all have excellent Live Chat support.
You can access both here: https://metamask.zendesk.com/hc/en-us
You'll find varying articles such as:
- Getting Started
- Knowledge Base
- Get in Touch
- Customer Networks
- Add A Token
- Promoted Articles
- Transaction User Guide
- Gas User Guide
Please note we are unable to contact Metamask on your behalf.