If you want to reach us, sending a mail to our sales@royal-trading.co address is the safest option.
If you are already a customer of our company support@royal-trading.co might be a better option for you.
If you are a project customer of our company the project leader on your side should have access to either a project specific mail box dedicated to your project or to an Atlassian Jira instant via which they can open relevant tickets to us, please consult internally.