Where is their office? How can I contact them?

https://www.lcg.com/     

LCG is authorized and licensed by the UK's Financial Conduct Authority (FCA) under the company name: London Capital Group Ltd and also regulated by the Securities Commission of The Bahamas (SCB).

As for the question you asked, we found some information in the "Contact Us" section of the brokers' website. But we still recommend that you ask the official customer service directly for a more accurate answer. For more details about this broker you can check our full LCG review.