If you need help with HBO Max streaming service, you can look on HBO’s contact us page for help options. They don’t display the customer service phone number to you right away, you have to first choose a support topic, then it will show you all the options including chat, email, text and phone calls. If you just want to call their customer service, the contact telephone number is 1-855-442-6629.
HBO Max customer support topics
Supported devices >
Streaming help >
Trouble signing in >
How to watch >
