can't hide on real phone

[gundamgogogo]

hi there,
Im using this great prefab but im now facing a big issue!
that is whenever i hide ads, and it shows up after couple secs. like when it load a new ad, and then it shows automatically. of course i can switch it off when i trigger the hide function but it still buzz me everytime. how can i set it invisible only show when i turn it on?
thanks

[gundamgogogo]

public void Load()
{
this.plugin.Call("load");
// this.Show();
}