OMG, sorry to hear that. I have used Chasbikes many times before but never had a problem. If it was stolen while they had the keys they should be responsible for it.
I know the red C1 you mean parked outside the bakery but it isn't mine and I haven't seen it for ages. I don't ride mine much anymore as I now work from home. If you get your bike back or buy another C1 get in touch. I have an ECU reader and variator tool if you need one, plus a load of spares.
ATB, Clive