Russell hobbs no stock after i made an online purchase

I placed an order online on the 14th of December for a russell hobbs kitchen machine , paid and got my invoice .today on the 18 th of December I sent a mail to the customer support department to ask when the delivery will take place because after checkout it said it takes 2 business days. They rep**** to me that they are out of stock and will need to refund me , now I have to try and make another plan as it is a gift for my wife. There was no indication that there is no stock available. I believe that is ********* business practices.