I agree with Doug.? Contacting Xeigu directly is a waste of time.? Don't even bother.? However I have found Alan Clunnie at Sinotel to be extraordinary at customer service.? I can't say enough about him.? He may not be able to provide the part but you have nothing to lose by contacting him directly at
sales@...Good luck.? BTW I am facing the same issue with the BNC conector.