Why I can’t subscribe to my Hynetflex

I cant load my solar system

I can't access the Combo 3500 data from my *121#. I need to subscribe as urgent as possible. How do I go about...

I got data on my MTN line with the HyNetflex and tried to subscribe but the link I have been using to recharge has not been working for a couple of days. I also tried using the...