False advertising

The company is advertising Samsung Maldives Wallmount A/c with digital inventor technology 9000 BTU for R999.00. I went to buy four of them but the sales person called Mahomed told me that it was a typing error. They failed to ensure correct printing of the advertising pamphlet before seculation. I asked them to rather sell me two at the advertised price but they refused. Its their mistake because its a misleading advertising strategy