Marcus support is the founders' inbox right now. Reply times below are real, not aspirational. The things you can fix yourself are listed first because that's faster.
Open /b/ for your project, hit Refresh once, then re-send the prompt with a sharper instruction. If it still misbehaves, mail us with the project ID — we can read the model output server-side.
Marcus does not connect custom domains yet. Download the project ZIP and upload the files to any static host; your domain then points at that host.
Mail [email protected] from the address you suspect. We answer with the project list (or "no account at this email") inside one working day.
Billing inbox: [email protected]. Include the email your plan was agreed with, the project ID and the change you want.
[email protected], 24-hour acknowledgement, real human. Bug-bounty program details on request.
Mail [email protected]. We pick up enterprise-shaped requests inside one working day and reply with the next step.
What to expect