I want my money back!

<p>I was booked to fly from PE to JHB on 15 May at 18:05. I went in the BA app to check in and it says flight is delayed and will depart at 20:13. I check in and go to the full website to double check the delay. Also says same thing. So I take it that the flight is delayed.I go to the airport at 19:00 in order to take my flight only to find BA desks all closed. When I check the app again then it says flight left on time. I had to buy another ticket through FlySafair as I had to be here. Why say a flight is delayed if it is not. I am so unhappy!! I want a full refund for that ticket. I have attached screenshots from my phone.</p>