You want me to make a complaint, about a fictional event, just to see if they will investigate it or not. Seems a strange request to me if you don't mind me saying

. I will give that a miss i think.
Ive been a trader for 7 years now on Betfair so I know pretty well how they operate.
The integrity team are there to investigate possible suspicious activities
and are duty bound to look at things that are reported to them by their customers / sports governing bodies / police / whoever.
They certainly would investigate any complaint that questioned the integrity of the exchange, probably because otherwise it would lead to a further complaint to IBAS and some bad press.
Going back to my earlier examples
Example 1.
You say the bet has not lost ???,
Im totally confused by this comment
The bet was not completely lost i agree, but neither was the football one either,
In both cases you would have had to trade out for a big loss because someone had a speed advantage over you and had bet on a event that had already happened..
Example 2.
Someone is betting after the ball is in the net
Someone is betting after the horse is on the ground.
Again no difference that I can see.
Moral issues aside ,
Other than to ban gambling completely it can’t really be stopped, either pre race or in-play speed of information always has been and always will be king.
We are clearly never going to agree on this issue,
but i was just trying to illustrate that things are not as black and white as you think,
the rabbit hole goes very deep
Good luck with your complaint anyway.