False Advertising, Unsatisfied customer

On Saturday 3 May 2025 we as a family decided to go to Mac Donalds, Where my 7-year-old boy loves to go cause he gets excited for the happy meal cause he gets a toy, on that day we went to MacDonald's in Kenilworth, went through the drive thru, where my boy was getting so excited cause as we were pulling up to place our order my son was seeing a lot of posters and stickers of the Minecraft movie, hoping that he is going to get a toy of Mine Craft Movie, instead he got 2 boxes of Sonic Hedgehog, he was so disappointment in what he got, So the reason for this email is to understand why a company would advertise a product to build up a kids expectation just to disappointment him with something other than you advertised. It is false advertising. This is not the first time that it has happened to him.

Could you please provide me with the information as soon as possible?