Falsely Misleading customers

I have been a loyal customer of MTN for 10 years + and yesterday o decided to check if I am eligible for an upgrade on my contract. I went onto MTN’s website and typed in my number and the site said I have been eligible since 31/07/2018. Since I was eligible, I went to find out what the available deals were. I then saw the option to preorder the Note 9 which was coming with the 24” monitor and the welcome pack. I liked the deal and therefore preordered the device. Whilst preordering, I selected the upgrade option in order to keep my number but it said I was not eligible. I was confused when I saw this. So I went to a store and was told that I’m not eligible for an upgrade. Now I am annoyed because I was made to believe that I’m ready for an upgrade but apparently I can’t get it now. This is giving false hope to their customers. I thought I’d be getting my Note 9 within a couple of days. To top it off, the special is only lasting for a few more days. If I was told by MTN that I’m due for an upgrade, then I should be able to upgrade my contract now.