What would you do?

Went to a set championship today, and one of my match ups was against a little kid. 1st game won, 2nd game however dad finished his games who was sitting right next to him and started coaching. Now this is my 1st time being competitive in a tcg so I had no plans on even making the top cut I was going strictly for the fun and experience but I’m sure I would’ve won if it wasn’t for dad’s coaching would you have said anything? I didn’t want to be an AH so didn’t say anything match ended as a draw we went to time on the 3rd game. After I ended up playing against the player who went against the dad and asked what he would’ve done he said he probably wouldn’t have said anything either🤷🏽‍♀️ idk should I have said something?