False written promises - No Integrity and no honor

Banggood offers Free Shipping on order over R838,16c. I ordered goods for the amount of R1660.59c. I am charged more than R3000,00c - more than R1300,00c extra for shipping ! I made a screen print of the order with the offer of free shipping. Attempting a Live Chat, brought about no resolution and a number of excuses. This business has no integrity ! To offer something in writing and then refuse to honor that offer !!