Double billed on my Credit Card

My Order o ********** 3 was for R153.99 which I paid using my Woolworths Credit card on the 04 December 2018.

Woolworths was out of Stock of the Chocolate & Caramel Flavoured, I did not request a Substitution, but Woolworths substituted it with Chocolate Dairy Ice Cream,

The Ice creams were 2 for R120.

I phoned a customer service agent and requested for the Chocolate Dairy Ice Cream to be returned as I did not want the product and the price was incorrect R76.99 instead of R60.

So after paying the first R153.99, Woolworths then re-debited my credit card for R170.98, the difference is R16.99 , which is the price difference on the Ice-cream.

So instead of taking off R16.99 from my Credit Card they added R16.99 to the R153.99 and took off R170.98 WITHOUT MY AUTHORITY.

(ID number is ********** 269085 – Transactions are reflected on my Woolworths Credit Card Transactions)

Firstly the Ice-cream price is 2 for R120 so if substituted it should have been a swop with no price difference. Secondly I was not contacted and as asked if I accept the Chocolate ice-cream substitution. I have emailed amd tried calling but can not get a response, i need the R170,98 to be reversed immediately.