Wesbank are amateurs

Im amazed how how bad the service is with Wesbank. Tried calling for the past 3 days now and been kept on hold literally for hours without talking to anybody. I submitted proof of insurance to stop them from adding an extra R520 onto my car installment however they never answer calls or countless emails sent to them. Everytime I call I wait for aver an hour with no answer, I must have waisted close to R400 on airtime to still not speak to anybody. I received a statment showing that they added an extra R520 onto my car installment even after i have submitted the proof of insurance. They are the worst place to have yopur vehicle finance with