This would make a lot of sense. They just "audit" everything according to the call centre.
"Verification" is simply taking your claims and matching them to your paperwork. If you say you had R50k's worth of medical expenses, they'll take your IRP5 and medical aid certificate to match the numbers. Simple.
"Audit" is where they decide that the paperwork you gave it enough enough. They pull bank statements, financial activity and sometimes set up meetings. They dissect your financial ins and outs and look for discrepancies in your claims, undeclared income (like from foreign assets or interest), etc. etc. They go over all your paperwork, just like an audit for a company works.