Money taken without consent

So I was not working for a few months and was unable to pay credit card. Absa advised me I should send an email to ********** which I did in April 2018. I never received any response or was never contacted my absa account was then debited in April 2018 for R1800 and today for just over R7000. Why as I was advised by absa someone will call me to confirm if all is in order. I am now R7000 short and my rent and other payments will not be paid due to this yet absa never called me back to confirm. I need the money refunded