Stole money from my account.

I had a dash delivery on Sunday. I approved R240 for the items I purchased, and they ended up taking R1050 from my account.I since contacted them on Tuesday, they advised that they would process the payment on their side, and that once that was done, I’d need to wait 3-5 days for my money. Their consultants even confirmed that they’ve known about this issue with their system for a while(but somehow never thought to notify customers of this) Three days later…no proof of payment into my account, no updates, and no responses to my emails. I don’t understand how you can ***** money from customers accounts, and still provide such pathetic service when they request a refund.