Hi Duncan Melville,
apologies for the delays in a response. I have still not heard from the course organisers what the dates will be for next month and have sent a follow up email for you now. Just FYI - this email is info@tbmcouncil.org
As they are based in the USA I wont expect to hear anything until tomorrow at the absolute earliest.
Again sorry for the slow time in getting back here, I hope you update you with something soon.
Regards Mark