Hi Danny,
Glad to hear that you enjoyed your Theta session. It is a bit difficult to advise you about attending a course in England without knowing what you hope to get out of it. If you feel comfortable discussing it & want to send me a pm with some more details then you are welcome do so.
Having said that, I believe that since you have now read the book & experienced a session for yourself you probably have a fairly good indication of what is possible. I believe if you feel strongly drawn to the modality & have a gut feeling that it is "right" for you then you will probably end up attending one.
We were also told a similar thing as you regarding activation of the DNA during our course & when I read my practitioner's manual I found where it clearly states:
"The DNA activation is now becoming a part of the Earth's collective consciousness. Enough people have been activated so that it happens spontaneously to people without having it done by a practitioner. Most people have already intuitively activated themselves."
Out teacher left it up to us to make our own personal decision to do what he/she felt is morally/ ethically correct in this situation. Hedid offer the comment though, that most practitioner's that he knew didn't really charge separately for it now & tended to do the activation as a matter of course during a session, which was what you experienced.
Love, Light & Blessings,

Sharyn