Aurora-R7, Build delays

I ordered an Aurora computer on October 10, 2018. Since that time, I have had conflicting information and delays. The current new estimated time of delivery is between December 7-12 - a full two months since it was ordered. I'm trying to run a business and need that computer.  And the main problem is that I cannot get any consistent information.   I have contacted Dell in several different ways.  

1) Chat on 11/16:  I asked if the computer is still shipping on time.  I was told there is a "part shortage."  He couldn't tell me what part.  He told me to call the order modification department.  I was never informed by Dell of any part shortage or pending delay. 

2) Facebook Alienware site:  I sent a PM to Alienware on Facebook on 11/16.  The agent told me the following: "At this time there is an unexpected delay with the order and right now we are taking the steps to escalate this matter and get it expedited. Please allow 2 to 3 busniess days for the next update on your case." 

3) I called Order Modification Dept on 11/19:  They told me there is no part shortage and the computer will be shipped by Nov. 22nd and arrive by the 27th.  I asked if I could change the processor from an i7 8086 to an i9 9900 and was told that the computer is already built and no modifications can be made. 

4) I never heard back from Alienware Facebook after 2-3 days as they said, so I contacted Chat again on Nov 23rd. They told me that my Aurora was still in PRE-production and that there is no timeline when they might start building it.  I asked what part is delaying it and he advised me to call Order Modification. 

5)  I called Order Modification on Nov 23 and asked them what is causing the delay.  I was told there is NO delay and my Aurora is ready to be shipped.  He said the Thanksgiving holiday delayed the shipment.  He checked on the actual shipping day and told me that my computer is scheduled to be shipped on Nov.26 and I should receive it by Nov 28.  

6) On November 24, I logged into my account and noticed a new expected ship date of December 4 with an expected delivery of between December 7-12. 

7) Contacted Chat again on Nov 24.  I was told that my computer has not begun production yet and that the part they are waiting on is the graphics card. He said they will not begin production until that card is in stock - and there is no date of when that might occur. He said the new expected delivery is just an estimate of when it might be. 

What is going on with Dell? I am disturbed by the lack of communication and the conflicting information that I'm getting from different sources. 

Any advice on what I can do?