What is the status of Deltec Precision Audio (DPA)?

Does anyone (perhaps in Britain) know what is going on with Deltic Precision Audio and its CEO/designer Adrian Walker?  Their Facebook page continues to have updates, but I have tried to contact them/him numerous times without any response lately.  At his advice, I sent back an MA1 amplifier from the USA for repair, paid for the repair, and never got it back -- unbelievable!  My DPA system is lacking one channel, and it looks like it always will.
He is still at it, just had a very close shave with Walker, a very dishonest man and total fantasist, avoid at all cost.
This is a message for Tom Whelan (dpa_service)...

Long time no see Tom!
I trust you are keeping well. 
Must get together for some special Greek brew...


Who can service DPA PDM 256 DAC ? Sent a couple of the messages to Tom  (dpa_ service ) , but he did not reply on my last ones.