AOA,
first of all sorry for that sad news, secondly the china lock is of no use, u should better go for those american locks, china lock can be open in seconds with a simple single strain wire,
lastly i will say, its a long time now, one month is hell of thing in the bro. so better not to waste time on it now, pata nahi kahi ki kahii phonch gai ho gi ab, may be us ke spares bhi spare ho gayee hoon ab, the procedure is to go after its traces in few days time only then u can be able to find a source and negiotate with them,
hard luck bro