Disco_Pants93
Striker
I think best case would be to also not mention it, or chase anything, until someone speaks to you. If it's not your Union speaking to you first, decline to comment or enter any conversation without your representative present. It'll slow it down and they can't just dismiss you without going through the correct routes. Best of luck, never nice to see anyone potentially lose their job, particularly with your personal family circumstances.
Also, whoever grassed you up is a bit of a c***
Also, whoever grassed you up is a bit of a c***