There are a few things I've noticed about inputting orders. Let's say I put in a move, and keep that box highlighted, then try to scroll down. The box will scroll down, rather than the screen. Sometimes this is blatant, and I'm not sure why the screen doesn't scroll. Other times it's tricky, and if I wasn't paying attention, I'd miss it.
One thing I do sometimes is to write down my orders on a piece of paper, and then hold it up next to the screen and verify that each move is exactly as I intended it to be. The paper is my way of "knowing" I did it write, because I never write something I didn't mean to. (Well, I shouldn't say never... but that's another story.)
Then, once I have all my orders input, I finalize them, and compare that to the paper. If everything's a go, then I leave it be. Otherwise I unfinalize and fix. Maybe it was the system. Maybe it was you.
The only way I can think of to make sure this never happens again would be to have anyone who plays England take screenshots of their moves as they're about to finalize them and if something wrong happens, to show it. Sure it takes a lot of time, and so forth, but what else can you do? (This last part was slightly tongue in cheek of course... :-)