MTN over promise and cannot even deliver!!

How can MTN advertise a product / data deal when they admit that they do not even carry stock of the product....for many moths??!! The December19 brochure shows data deal with a fixed router, but this router has been out of stock for months! And they're not willing even to do the deal with another router. THAT'S BAD BUSINESS MTN AND VERY DISAPPOINTING. Your competition will gladly accept my money for a similar deal!!