vl-28.customer-gw-rocketseed-south-africa.es-33-jnb.za.seacomnet.com AXFR zone transfer

Not an apex domain The domain vl-28.customer-gw-rocketseed-south-africa.es-33-jnb.za.seacomnet.com is not the root of its zone.
Instead, try zone transfer on za.seacomnet.com .