False advertising

Nando’s advertised a special for R199 if you order using their app. I ordered as soon as you click on it the price changes to R229 then when you check it out for delivery it charges you delivery fee. I called the customer call center and I was told that’s the service fee, but why not state that on the advert, this is false advertising. The call center lady said she would escalate the query and the manager would call me in few minutes which never happed. Then I called again the atlas manager called me to explain that because of delivery the app does that I told him it’s when I am placing the order before it even asks if it’s delivery or collection, he didn’t have an answer for that but kept on insisting on his theory then I hung up and changed restaurants what a disaster it’s almost two hours waiting for the food, the drivers phone was off and now he is lost this is the worst service