Rwandan Embassy has not been established in Uk - British Virgin Islands yet.
You should applying online for Rwandan eVisa online for saving time. By that way, you will get the Rwandan eVisa approval letter before leaving Uk - British Virgin Islands for Rwanda.
Please visit our visa processing to know how to apply for Rwandan eVisa step by step safer and faster.
If you have any further questions, please feel free to contact us. Thank you!