You would need to add a cName record to point the www and non-www to your current server.
Then add a redirect to the headers under the server alias of the domain hosted with Afrihost
Once the domain hits the server, it will redirect to the site
If you require further assistance please email: email@example.com
or contact Afrihost support on 011 612-7200
or via live chat support on our website
alternatively you may request a call back by smsing the word 'help' to 32541