False advertising

The airline advertises cheap flights and the number of seats available but when it comes to payment processing it gets stuck then kicks you off saying the flight was sold out try again then you try purchasing again the same flight at the same time at a higher price (even though still lower than the normal fare) than it was and it still does the same thing. The entire process is rigged so you cannot purchase the flight for that price it will only process when the price is gone sky high. They advertise low fares but this is a ****. They also advertised flights for R299 but when you go on the site its all R399. What a lie!