Worst service ever,pooor security

Good evening,i i withdrew money from an fnb Acc,then there was load shedding couldn’t get my money I only got my card,I tried contacting the customer service call centre but I held the line for more than 30minutes my airtime depleted I called again same thing happened.

I received a call from a consultant and my my was reversed but a few minutes later I received an sms on my app stating that a 1voucher has been bought!! I WANT MY MONEY BACK!