Dont care attitude

I attempt to draw R 800.00 at auto-telller. Slip states insufficicient funds. Go home immediately and do internet check on my bank acc and see my acc debited with R 800.00. I lodge complaint at Standard Bank. Week later receive sms informing me my complaint rejected saying I will be notified in writing why rejected. One and a half months passes and receive nothing from Standard Bank. They have all the facilities to verify my claim eg video footage at auto tellers and a duplicate transaction print out. However they couldnt care less about this insignificant customer who has lost his money. They rather dare him to challenge their mighty power and their in house legal department for this according to them insignifigant amount by a insignificant and bothersome client.