Withdrew money which did not come out

On the 27th May I withdrew money from a Capitec ATM. The amount that came out was short. I called the call centre to log a query and was told they would get back to me. I sent multiple emails to contact centre, which Capitec is just fine ignoring. Last Friday I called in again an the person I spoke to said they weren't sure what was going on with my query as it had been closed. She would look and send me an update via email...I am still waiting for that update.