Paid for an order that wasn't approved!

Hello,

I decided to buy an alienware laptop few days ago. I ordered it online but after 3 days i haven't received any confirmation email.  So i decided to call customer support. I rather friendly guy told me that there was a problem with my payment and the couldn't process the order. After that he redirected me to a person who could give me more details. This person informed me that there has been a problem with bank authorization and i have to call them to check with them. So i just called my bank and they told me that no transaction has been done from Dell with that amount of money and that there is no problem (like payment limit since i use a Debit card). 

I called again the previous guy from customer support and he  told me that we can place the order again for the same price so i told him to do so. 5 min later i got a mail stating that the order was fine and about an hour later i was on production stage! Yesterday i got another mail telling me that my first order is no approved!! the one that YOUR customer care told me that they couldn't process because they where unable to process the payment!! I checked my account balance the same time and guess what! I HAVE PAYED FOR 2 LAPTOPS! Needless to say that this thing left my bank account almost empty! I called your customer support again and they told me that the first order was already canceled and the money should be refunded. 

Honestly Dell how can you deduct money after you told me you couldn't do it. Unless your employees are getting bonus for every sales they made so they just lie!. (After a small search i found more people with the same problem).  My problem now is that you took 1400$ out of my account and you need 1-2 days to refund (I doubt the refund will happen on time considering my experience so far) them for an order you could verify the payment!!!