MTN Bis has been rocking on Openvpn for a while now so i have decided to share with you guys
Follow the steps below.
1) Download Openvpn on your Pc by clicking
here2) Install the Openvpn software
3) Download the Mtn Bis Configuration file
here4) Extract the Mtn configuration file
5) Open your local disc ==> Open program files==> Open the openvpn folder
==>Open config folder==> Then paste the Mtn config files you downloaded into the folder
6) Close the file then run Openvpn (run as administrator)
7) You should se the Openvpn icon in your taskbar at the right corner

Right click on it and you should see all the config files you pasted previously
Finally select any of them and
connectNote: M4code13 and 18 has been confirmed working fine

If you have questions please post below