Bank fails to give me my money back

i am a capitec bank card holder was withdrawing funds on a nedbank atm next to bree taxi rank did withdrawal like normal put in my pin,amount to withdraw and the atm gave me a slip back stating withdrawal cannot be completed on the 03-09-2015. seconds later i did cell phone banking to buy airtime to call my partner as the atm did not give me my card back.just when i hanged up the phone i got sms with money taken out of my account number what puzzles me most the ********** managed to take money out of my FIXED DEPOSIt Account with maturity date December 2015.18:25 bought airtime,18:26 -R250 from my account woolworths CBD atm,18:29 -R2000 from my Fixed acc JHB Kerk atm ,18:31 -R1000 JNB Kerk ATM,18:32 -R1000 kerk JNB atm.<br> reported at capitec branch incident no. *** & ***7<br> now i got a call from capitec bank after 18 days of investigations they are telling me its my own negligence i gave ********** my pin no. so they wont refund me my money. even the money that i was supposed to get on maturity date december 2015.if it werent for payroll and 25th salary date i would have changed my bank ysterday they dont care about us as victims of such ********** act. please please assist