How to possible withdraw bitcoins with no visible transaction? I have expierence in c-cex with this. Someone hacked my c-cex wallet and sell a bunch of altcoins....ok,but here is not visible hacker withdrawal transaction,how its possible

sorry for my bad english.
What do you mean that hacker sell your coins?
Withdraw it or trade it thru exchanges by sell? If trade it by sell, then you can see that in your trade history but not the actual tx id transaction. If withdraw then you must saw it also. How come it was no visible transaction?
Ok to minimized the works and to solve some of the questions, then right, it's better to contact the support itself as they are the only one who can respond to that.