Monet taken without my consent

We hired a POLO VIVO at HERTZ OR Tambo on the 13th Nov 2017 (INV- ********** 3-6). We were told that it takes 7 days for our refund of R14065, on the 18th NOV my Credit card was then debited with amount of R12999.39 and then a further R66.23 went off the 22 Nov 2017. No one has called me with regards to the amounts, I am so angry that amounts like these can just be taken from customers without any sort of communication.

I've called customer care and spoke to Yakeen, who requested info and promised to get back, its been 3 days no reply, I've emailed customer care 3 days ago and again today.... no reply!! I am so angry disappointed that we can treated like this, this will be taken up with CPA aswell!