I realise from other media that this subject was raised earlier in the year - but I have only just bought my P9 set of 3 units and am late to this forum.

I now need a fourth unit.  Seems like mission impossible.

Anybody here interested in sharing the cost of a 3 pack?  Needs just 3 of us and a bit of trust:  and I'm happy to do the initial purchase and redistribute ...

Grateful for any contacts on this.

Meanwhile - Happy New Year - let's hope it's much improved on 2020!