Aside from the fact that all the deposit/withraw privileges were reset after Season 6 launch, when one person tried to deposit a small amount of EC, he lost his money, but it didn't appear in the bank. When I tried to deposit and withraw 1 EC for a test, it all worked fine, but when the other person tried the same with the same amount, that 1 EC never appeared in the bank. Had to disable all privileges for now, so that people won't lose any of their currency.
Just as a FYI, 99.9% of the time, devs don't respond. If that's what you're waiting for, don't hold your breath.
It's one of those it will either get fixed within the next month or so or you'll never see a solution. I know last time this came up, some searching showed previous threads on the problem so this appears to have been an issue for a while now.
Oh and the ecs are gone. You can suggest to the players that they open up GM tickets in game (/bug from the zone chat command line) but chances are they won't refund them the funds.
we have the same problem with 3 fleetmembers who are unable to put energy credits into the fleetbank.
If they try to put energy credits into the fleetbank, the amount is withdrawn from their personal account. An entry in the fleet protocol is created but the amount of energy credits in the fleetbank remains unchanged.