Apex domains cannot have CNAME records.
Question and response
Question
dig baxter.co.za. NS
Answer
baxter.co.za. 2 NS cash.ns.cloudflare.com.
baxter.co.za. 2 NS anita.ns.cloudflare.com.
Authority
The response has no authority records.
Additional
cash.ns.cloudflare.com. 3 A 108.162.193.81
cash.ns.cloudflare.com. 3 A 172.64.33.81
cash.ns.cloudflare.com. 3 A 173.245.59.81
anita.ns.cloudflare.com. 3 A 108.162.194.82
anita.ns.cloudflare.com. 3 A 162.159.38.82
anita.ns.cloudflare.com. 3 A 172.64.34.82
cash.ns.cloudflare.com. 3 AAAA 2606:4700:58:0:0:0:adf5:3b51
cash.ns.cloudflare.com. 3 AAAA 2803:f800:50:0:0:0:6ca2:c151
cash.ns.cloudflare.com. 3 AAAA 2a06:98c1:50:0:0:0:ac40:2151
anita.ns.cloudflare.com. 3 AAAA 2606:4700:50:0:0:0:a29f:2652
anita.ns.cloudflare.com. 3 AAAA 2803:f800:50:0:0:0:6ca2:c252
anita.ns.cloudflare.com. 3 AAAA 2a06:98c1:50:0:0:0:ac40:2252
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0