Disappointed that i can't upgrade

Hi Guys<br> <br> I am due for an upgrade on my SME account that currently has a macbook pro on it, iStore no longer do these contracts so i went into MTN pavilion to get my upgrade there but they have no stock, due to your new fancy helios system that doesn't work it won't allow me to get an upgrade captured or order from the warehouse, now i have to sit without because your developers don't know what they are doing, either get this fixed or let me out of my contract at 20 Months because YOU cannot provide the upgrade and i would like a new device!!!