Apex domains cannot have CNAME records.
Question and response
Question
dig cloudhive.net.za. NS
Answer
cloudhive.net.za. 5 NS pns101.cloudns.net.
cloudhive.net.za. 5 NS pns103.cloudns.net.
cloudhive.net.za. 5 NS pns102.cloudns.net.
cloudhive.net.za. 5 NS ns103.cloudns.net.
cloudhive.net.za. 5 NS pns104.cloudns.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0