Ordered over 3 weeks ago and still no delivery

I placed an order on the boardmans online store on the 19th of January. I was told that I will receive the parcel in 5-7 working days. 10 working days later (Friday 23 Jan) I receive a call to say part of my order is no longer available (it had been sold in the store) and they need to refund me this part, and the rest will be dispatched that day. After an argument about the timeline and why I had not been contacted earlier, I agreed, and my order was dispatched, due for delivery on Tuesday 27 Jan. On Monday 26 Jan I received a call to say the truck was hijacked and my order was on that truck. They now need to source the stock and resend it to me. I asked to speak to the manager, and was told they would call me back. Its been a week and still no call. I now have not had any contact or mails to let me know the status of my order for over a week. Even if the truck was hijacked, I should have received the new delivery by now. I emailed customer care, who did not care AT ALL, and gave me a lame apology and said they will get back to me. This was last Monday, and still Customer care nor anyone from Boardmans has contacted me. I have paid for my goods, and over 3 weeks later still nothing