How to report an in-game ad in the App Store?

Hello, I would like to somehow report an in-game ad. I play a game called “Block Blast!” and there’s an in-game ad for an app called “Star Ball Fall” which is highly inappropriate. It speaks about suicide and that playing the game prevented it. I think that the people who made this app have never thought about people suffering from depression and how this could be cruel and offensive to them. I try to report it every time I stumble upon this ad on some portal that is linked after the ad ends but I guess that it goes unnoticed.

[Re-Titled by Moderator]