Short answer
Open a ticket in the client area under Support, choose the right department, and include the service, what you see, when it started and what changed.
Pick the department
- Technical Support: something is not working.
- Sales: questions before you buy, plan changes and quotes.
- General enquiries: billing questions and anything else.
What to include
- The domain or service the problem is on.
- What you see, with the exact error message or a screenshot.
- When it started and anything that changed just before.
- What you have tried already.
Never send passwords in a ticket; we will ask for access in a safe way if we need it.