Alienware Tech Support Issues

I ordered my alienware on August the 25th I believe, I received it on September 10th I believe. Since I had my computer I have had literally nothing but problems with it. The computer BSOD every 1-2 hours, the graphics cards are all malfunctioning, and the processor isn't the one I purchased nor is the ram good. Each one of my RAM sticks are running at 800mhz, which is like 2001 school computer ram. It troubles me very much to have paid $2600 on a Gaming computer to not be able to use it properly. I am in the music industry, as well as an avid gamer. It's just not right, I have phoned the Dell tech support 12 times and everyone said they will get back to me via email, I got 1 email from them and that's it. All of them saying they will have a tech come to my home and repair my computer and give me the parts that were originally ordered.

Current Parts: Intel i7 3820k Overclocked to 3.8Ghz

ATI Radeon HD 7870 2GB x2 (BOTH MALFUNCTIONING)

1TB 7200 RPM HDD

16GB DDR3 Ram (Running at 800Mhz)

Parts the Tech said he would give me:

Intel i7 3920k Six Core Processor Overclocked to 3.9Ghz

2x Nvidia Geforce GTX 660 1.5GB

2x 500GB Solid State Hybrid

16GB DDR3 Ram ( Running at 1600Mhz)

I have been waiting for months to get this fixed and I am absolutely furious I don't know who to talk to, and I cannot return this computer as the 30 day return policy is long over-due.

When you guy's say your going to send out a tech to fix my computer free of charge, I actually expect it within 2 weeks, not 2 months.

If anyone from Alienware could help me with this situation that would help me gratefully. Thanks.