We are not magicians I’m afraid. As much as we are here to help you and give advice, we cannot change results. As Nik pointed out, this is a common bug in Associations. What you saw was a simulation which was not saved to the server. So to you it happened but a server issue caused the game to be re-simulated and a different result given.
Many of us have suffered a similar fate and as much as we sympathise with you, we do not have the power to change anything.
If you feel so strongly then you should contact support but as Nik also pointed out, there is nothing that they will do either.
This isn’t great but unfortunately it’s a fact.
Best to just put it down to experience.