SARS staff are uneducated

Can someone please explain to SARS employees that when a client requests to see the form(s) they are signing. SARS, a south African government institute are LEGALLY required BY LAW to prove to a client what they are signing. For a SARS employee to me they can't follow LAW because it's an inconvenience, shows a level of education and arrogance completely below sub-par of any employee.