What! Celcom Broadband Basic Youth not available?

Went to Celcom branch here end of last month to find out more about the Celcom Broadband Basic Youth which is cheaper than the normal basic plan but been told that it is not available. Other plans are available except this youth plan. When i ask why not available because the advertisement says that this promotion is valid till 31 March, the staff just say it is unavailable. What is this. It in the advertisement but unavailable. If like this, no need to advertise la. So will find out more about Digi and Maxis broadband.