Redhill post office

I went to the redhill post office to get some elderly peoples cards changed to the required 1, I joined the line so I can get going with everything and call the elderly inside when we close to the front only to be told they don't do post bank???? kindly advise further because the internet tells you otherwise ?

Why do you guys advertise on your website as follows: "Postbank is situated inside every Post Office nationwide, as a Postbank customer you can do your banking at any Post Office counter"

Sassa is telling us this : "you can visit any South African Post Office (SAPO) branch to replace a lost or ****** SASSA card. You can also visit selected retailers to replace your SASSA Gold Card with a Postbank Black Card".