Upgrade

I got an email saying that I was eligible for an upgrade. My upgrade is due on the 18th May but Telkom offers you the option to upgrade 2 months before hence the email. I went to the Telkom Store at Bayside Mall and they did not have any of the phones available. It seems like the store only keeps the more expensive phones and the cheaper options are just not in stock. I tried to upgrade online and I got an sms to say that I am not due for an upgrade. I tried calling 10213 and the prompts tell me that I am not due for an upgrade. I tried the online chat and they referred me back to the store or the call center. So now I am literally stuck. My contract is going to expire and I can't upgrade. I just can't believe that in this day and age Telkom is still so bad with service and systems. Shocking and disappointing. All I want to do is upgrade.