Dishonest pricing

I am writing to express my concern regarding the pricing and delivery of my order for the ContiSportContact 5 215/45R17 91W XL FR. I was charged R3000.00, while my wife had an quote indicated the price at R2809.99. Additionally, I have found the same tire available at other retailers for significantly lower prices: • Malas: R1799.00 incl. VAT • Lombard: R1924.98 incl. VAT • Tiger Wheel & Tyre: R2399 incl. VAT