Red Customers treated poorly

I have recently contacted Vodacom regarding an upgrade - been on the red plan for the last 2 years never missed a payment of around R1850 pm. Been a solid member since inception only to find out i only qualify for the Samsung A series with no real reason why (like some credit excuse). Now that could be that i'm busy moving bonds but still....

Anyhow i will be moving over to the Yellow team soon if i cannot resolve this little mishap thats just occurred.. Can someone at least get back to me with some solid reasoning please.

thanks