[Elecraft] Brand New KX2 Issues

[R.S.]

Hello all,
I ordered a KX2 with all the options back on March 27th of this year and received it on July 12th. Out of the box it was having issues.  For example,
-When pressing PTT button on factory mic it will change frequency intermittently.
-MIC UP/DOWN buttons put KX2 into TX mode briefly intermittently.
-INT Mic and EXT Mic will display randomly when pressing any mic buttons.
After experiencing these issues I called Elecraft and they immediately sent me a replacement mic but the problems still persisted. So I was instructed to send the radio back at my expense ($50 USPS insured) to Elecraft so they could diagnose it.
I sent the radio back on July 21. After being at Elecraft for a month I was informed that they could only replicate the random INT Mic /EXT mic display flashing on the screen but could not duplicate the other issues I complained about.  I told them to keep trying because it happens fairly often and obviously makes for a difficult QSO when you keep having to adjust the VFO to stay on frequency. 
So fast forward to today when I get an email stating they are sending the radio back to me with no fix and no resolution. Only that there could be a possible firmware fix in the future. I really do not think this is acceptable. 
I am curious to see if anyone else has experienced the same issues with their KX2 and what did they do to resolve the issue.
Thanks and 73,Ryan W6ZAR