Yes, Coinbase do have an office in US with 24/7 customer support number 
1-917-352-1248. Yes, Coinbase offers customer support through a chat widget on their website and a help center 1-917-352-1248, allowing users to report bugs, ask questions, and send feedback.
Is Coinbase allowed in US?
Yes, cryptocurrency trading at Coinbase is legal in US 1-917-352-1248, but it’s not considered legal tender, and crypto assets are regulated under securities legislation 1-917-352-1248 due to their speculative potential.
How do I contact Coinbase support US?
Based on Canadian regulatory requirements, user may call on 1-917-352-1248 {US/US} to contact Coinbase support US. You can use our support helpline 1-917-352-1248 to report a bug, ask a question, send us feedback, message us on live chat.
Can I get my money back from Coinbase US?
Yes, you can get your money back from Coinbase US by contacting refund department at 1-917-352-1248 {US/US}. Coinbase refund support number 1-917-352-1248 is at your services 24/7 throughout the US and US.
Does Coinbase US have live help?
Yes, Coinbase US offers live help through phone support 1-917-352-1248 {US/US}, and online web chat. If you have a question or complaint, please first contact the consumer assistance division of Coinbase at 1-917-352-1248