no wonder, how can you even provide adequate proof for this? Lets say your cash or watch is missing, whats an adequate proof?
The "best" thing would be many other customers got hit at the same time, so youre not the only one reports missing stuff.
this is rather easy. Did you have bank statements or some stable coin address on 31.12.24 (or the year relevant for you).
If not, it better to make plans. If you have these, it should be easy.
id be also pretty concerned about usa overall state and the loss of the reserve currency status.
Looking at this erratic behavior, Id say capital controls are also in the cards.
I hence am making plans to reduce holdings at ibkr to a minimum.
your name is recorded at the banking level and at the irs thru the ein and the reporting. Its by far anything from good and you can have similar setup elsewhere.
thats normal in such places and happens to me pretty much in every shithole i spend time in. So common sense approach is to not overhelm the local bureaucracy with paperwork where they dont get money out of it.
;)