Unfortunately, Rocketpot's representative is no longer active here, so the only real option is to contact Rocketpot directly. You can email them directly at [email protected] or contact their support on their live chat. If that doesn't work either, I suggest you create a report in the Scam Accusations section.
EDIT:
I noticed now that you have another thread regarding your issue with the Rocketpot casino. I hope you're now getting the answers you're looking for and proper resolution. Good luck!