False Sales and NO communication

They are super quick to sell you a product.... with no feedback on the application after a week... i followed up just to find out the application has been canceled.... and when the application was processed MTN had stock of the device.... now it just happens after THEY had canceled the application with NO comunication they just happen to be out of stock... and when you query how is MTN going to resolve this they tell you very abruptly "well then pick another device" will be canceling my contract within the month