As this is a UK-based forum, it's unlikely that there will be anybody here who is familiar with African TV systems.
However you can find set-up manuals here:
https://selfservice.dstv.com/devices
If you're still stuck,there's a contact form at the foot of this page:
http://campaigns.dstv.com/explora/faq.html
(There doesn't appear to be anything there but if you enter your forename and hit 'Enter' the surname field appears, and so on).
Alternatively you can click on the name of your country (at the top of that page) and then scroll down to 'Contact Us'.