More that a month ago I emailed the head office to ask where / how I could buy a simple spare part (the retainer ring for the facia plate of the egress alternate air source) now that they no longer have an authorized agent in Singapore. I got a fairly immediate reply saying that they have forwarded my question to the appropriate department. Despite several follow-ups, I've not received any answer at all. You guys are making it very tough to stay a loyal customer. Until you have another agent in Singapore - and let me fix my reg - my students will be steered to Scubapro (makers of the replacement reg that I have to use).