Double debit-Rude Staff

Placed an order online on the 4th of Jan 2020, paid R359. On 7th Jan, I picked it up, and on 8th Jan, I was charged R359 again. No customer support contact details. I filled out a form, and chatted to Faisal on Zara chat. He was extremely rude, telling me that our money is held until the item is shipped. I told him the money is taken out as soon as the order is placed as with all online shopping. He told me to go to the bank and sort it out myself, thereafter asked if i needed any other help, and while replying, he ended the chat. Unprofessional, and lacking knowledge of sales and customer support.