Free booster with Video option

No one can really answer that question for you Mausam, as only King know why they refuse to hand out the all of the features to all of the players.

The official response is that all features are just being tested, but this doesn't make sense to me. Adverts have been in the game for a very long time now, so any 'testing' would have been completed by now.

The only 'fact' we know is that if you haven't got a feature at the moment then you are highly unlikely to receive it any time soon. Also if you have ever bought anything for your game you will never receive any feature that provides free boosters.

Welcome, newcomer; but it seems like you're not part of an experimental test group (of guinea pigs) with the feature, see here.

Some will get adverts & others won't, different people get different features; so you just have to deal with the experiment for as long as it lasts, but (try to) have fun.

And do not delete the game in an attempt to receive the feature, as any accumulated boosters/received game lives would also be deleted (if playing via mobile devices); see this.

You're basically at the mercy of those tasked with maintaining the game on whether or not you ever get the feature.

But once you make a purchase within the game, don't count on it; here's an example from another unfortunate player.

Guinea pigs, such adorable little creatures...