No, Its not False. Refer Wiki link if its false. I could post this link here but minibb does not allow outside links here. So you can Google "Wire Fees".
Wiki is a not a resource you may quote..., it's only a kids book for learning A-B-Cs of the world, not referring to something like this case.
You may check Fees Shedule
on 2checkout itself. As you may see, as more monthly chargebacks you have, as more they will charge from you (which is logical, I suppose). I'm using intermediate bank in US and I suppose I am on the USD Wire (Non-FX Destination) chargebacks. By now at least...
Also, it may very depend on the bank you use; it also could have various fees, that doesn't mean 2CO are related to them.
I may understand you have a big problem with them; it seems, in the past time, as I've mentioned, they became in some way hard to deal, because something *new* came out on their end, may be it's just re-freshed staff.
I wish you good luck in it anyway... such a big sum deserves to come back, if it's earned on a honest way.