Frustrating Service + not yet resolved

I recently upgraded my data package to a top up. I have a \twin sim"& after upgrade the one sim stopped working.<br> <br> When I called they said they would reactivate it within 10 days.<br> <br> I called 10 days later & they said issue was now that a top up package does not allow twin sims. I said I would then need to change my package to the unlimited one as I needed both sims to work. Their response was that I would have to wait 3 months to change a package. I didn't understand how this could happen as this was their error? They then transferred me to another department and the gentlemen their said actually you could do this and would transfer me to the right department. While I was being helped with this"