Mtn
Check your'e area before choosing Mtn Data

I have an Mtn data card for email access to work emails, it rarely goes onto 3g and is most times on Edge, or intermittent Hsdpa, it is pathetic, I had the same problem with Cell C and after complaining they have fixed it, unfortunately for me i cannot access work emails through my cell phone,
Check with someone in your area before signing up with Mtn!!!
I wait in anticipation for an improvement...