Contact Us
We're here to help
Whether you have a question about buying or selling materials, need help with a transaction, or want to report an issue — we're here for you.
General Support
For questions about your account, listings, orders, or the platform in general.
Email: support@greyn.market
Report an Issue
Signed in? Open the Help menu and choose Report an Issue to send us the details, with screenshots if they help. You can follow our answers under My Reports.
Not signed in, or locked out of your account? Email us at the address above.
Response Times
- General inquiries: within 24 hours on business days
- Urgent issues (payment, security): within 4 hours
- Billing & escrow questions: within 12 hours
Disputes & Escrow
If you have a dispute with a transaction or need help with an escrow payment, our team will mediate to find a fair resolution.
Email: support@greyn.market
Legal & Compliance
For legal inquiries, GDPR data requests, or compliance questions, please review our policies below or contact us directly.