Poor service and misleading advertising

I have been to McDonald's rustenburg, on Nelson Madela Drive, during the school break several times, trying to buy my kids the Nazo meal they advised for R29.90, however I was told several times that they don't have ingredients, and that I need to order the R50 one.

After ordering the R50 nazo meal, the only difference is that this one has double cheese, but same ingredients.

So someone told me that what they are doing is actually upsetting,it's not because they Don't have the ingredients.

I find this to be morally wrong to make people pay more unnecessarily.

To think of it, it has happened a couple of times in the past bit I didn't mind it that much,but they have made it a habit and they're getting away with it