Homechoice committing ***** on our accounts

On the 11th May I received an email that I have placed an order for a hisense fridge. I immediately called homechoice because I never placed that order. They promised me that the order will be canceled and the account flagged for *****. On the 17th May, I received an sms that the order was delivered. I immediately called homechoice again and told them I never placed the order or received the order. Then I was told that my order was dispatched on the 11th even though I had called them. They said I must call the ***** department, which never answers the calls anyway. I really now do not know what to do.