Micro Lipo on my Neck 3 Weeks Ago and There's Still No Change? (photo)

The difference between 2 days and 3 weeks is so small I would call it insignificant. If the 3 week result looks like the preop as you say it is obvious why it is micro liposuction. In that case you wasted your time and your money and no surgeon should have done the surgery because no surgeon on earth will make you happy.
 
I hope you realize that this format of posting questions and receiving answers lacks the face to face direct communication required for you to make an informed decision regarding your surgery.

My response to your question/post does not represent formal medical advice or constitute a doctor patient relationship. You need to consult with i.e. personally see a board certified plastic surgeon in order to receive a formal evaluation and develop a doctor patient relationship.

If you liked it two days after this is where it will end up. Have you been wearing a compression garment.  You have normal swelling and must be patient.

Thanks for posting the photos. Micro lipo can ONLY give very micro results. I would be very upset as you are. Seek second opinions. 

Liposuction of the neck can be very rewarding.  Since you are only a few weeks post-surgery, it is too early to predict the final result.  GIve it  more time.

I personally believe that microlipo produces micro results. That said, you have swelling and should be wearing a compression garment. You are in the preliminary phase of healing and the result will not become apparent for a whil so be patient.