Great Service, Slow connection

I have been with Vodacom from 1995 up to now. I have never had any reason to change, and i have always experienced great service. All of my devices run on Vodacom 3G but that is my problem starts. <br> <br> Between 5 and 10 at night my connection is so slow that i can hardly even do a simple search on Google or check my mail. it takes me about 3 minutes to download a 1 Mb file. This is very frustrating as i cant do this stuff during the day as I am at work in a factory. My wife keeps telling MTN is better, but we all know the truth.<br> <br> So it means that i have to wake up at 4 am, where it takes 3 mins to download 100 MB file, to do what I need to do. It has become a bit annoying now as I don't like waking up at 4 am.