Can someone explain how this roaming on mtn works? I have 200mb per month of TM data, but at my house I don't get reception so I have to roam on mtn, but if I want to use data on mtn then I have to enable data roaming on my phone. It then sends me all sorts of SMS about my data bundle being finished and wants me to choose options on some 8ta portal. I don't want to do anything wrong here....