Like you I emailed for info about 14 days ago and had no reply - as yet.
A friend in my Club also emailed abpout 4-5 months ago and did get a reply form someone who dealt with 'orders' who happened to be leaving. His enquiry was passed to someone else who then failed to reply too.
The UK agent for these grips has not heard from them for months despite sending Xmas cards etc. That suggests that they really have dropped off the radar. He told me that Maennel had set up a factory for 'Ciro' but after a while there appeared to have been some argument or other. That is all he knew.
I managed to obtain a Ciro grip - unused in the UK by hunting round. I have to say that the quality is exceptional - well above that of the Steyr standard grip that I have. However, it is also clear that to get it to fit 'perfectly' I will still need to do some modifications despite selecting from the massive range of varying sizes on offer. The holy grail of an off-the-shelf grip that works right out of the box has yet to be found I fear.
(BTW I also emailed Rink for an update on stock and leadtimes for a similar grip - to be told quite firmly that the info was on the website and that leadtime was still 6 weeks and that no stock was held. I was wanting to buy a Rink grip not a BMW - 6 weeks leadtime!) Mind you the email reply took less than 2 hours which was excellent.