Poor Service from manager and false adverti*****t

On the 25/05/2021 I went to McDonalds Avonwood drive-thru, when we got there the speaker box thing where you need to place your order was broken and there were a note to say that you need to place your order at the next window. While waiting to get to the window I then had a look at the menu and asked the children what they want but then I also noticed that they have the share boxes, there were 4 different ones on the menu outside we then decided that we be ordering the Quarter pounder share box. When we finally got to the window to place our order the cashier said that they no longer have the Quarter pounder share box but I then told her but outside on your menu it shows the Quarter pounder share box, I then requested to speak to a manager but that was also not helpful as the manager got to the window I then explained to her what I want and her reply was "we dont have the Quarter pounder share box" no apology nothing I even mentioned to her but its showing outside she just kept on repeating that they don't have it. What poor way for a manager to handle a situation. Then we decided that we will just order something else, asked for a Happy meal with nuggets for my son then the cashier said "we don't have any nuggets for the Happy meal". Tell me how do you do business when you have stuff on your menu but you don't sell it anymore and then you also don't give the customer an apology and besides that how can you not have all your ingredients/item if you know that 1 out of 10 customers will be asking for this item.