Changes since SOA version
IXFR is a zone transfer request that returns changes since a specific SOA version. Enter the SOA version to request changes since then.
Not an apex domain
The domain 196-47-63-86.access.mtnbusiness.co.za is not the root of its zone.
Instead, try zone transfer on access.mtnbusiness.co.za .
Instead, try zone transfer on access.mtnbusiness.co.za .