Staples Charged for discounted item that is out of stock Sedona Arizona

I wanted to buy a HP laptop during Black Friday. Store Manager told me it would still be available on (Cyber) Monday.

On Monday, I walk into the store and purchase the item - the price is still on display, the Store Manager tells me that while it is not in stock in the store anymore, it will be shipped to me. She charges my Credit Card, item is expected in six days. Four days later, while checking the item online, I see a CANCELLED sign. Store Manager explains that it was a limited items deal (item is still showing on stock, but for full price now).

Seven days later, no credit on my CC from Staples. The charge for the laptop which was sold to me although not on stock has now been deducted from my bank account.

I might receive a credit on my new next statement...

Of course, Staples is "sorry for the inconvenience this must have caused"

I find it appalling and reckless.