Update March 2015: Recent reports indicate the unofficial status match programme is running reasonably smoothly.

TK will only match Star Alliance Gold, Skyteam Elite Plus and Oneworld Emerald members. Other, more exotic, gold card holders are out of luck. Please report your experience in this thread.

It appears that status matches are only granted once per lifetime, so think carefully before requesting if you might not re-qualify.

Please note that the only way to contact TK is now via the website

2/6/2015 new info from TK
We have received your message that you sent to our unit on 20 January 2015. Please be informed that when you claim your first flight with Turkish Airlines or other Star Alliance members to your Miles&Smiles account, your card will be sent to your address automatically.

On the otherhand, we would like to remind you that you can also get your original Miles&Smiles Card from Card Press Desk at Ataturk Airport International Terminal between 07.30 A.M and 09.45 PM. The location of Card Press desk is between A and B Check-in counters.

4/7/2015
Adding this Step-by-Step guide with screenshots to TK Status Match
http://dcta.boardingarea.com/2015/02...-status-match/

26/7/2015 - Jerry
TK asks for Elite card scan AND Account activity within last 2 months, so it's best if you have some activities!!
Timeline can range from few hours to few days, be patient!

21/9/2015 - Neil791
For those reporting successful matches, can you please post your results as follows so others can estimate their wait times, success rates

02/11/2015 - flolee
It looks like TK might also ask you for a scan of your Passport now. So if you are in a hurry better submit it right away in the first place with all the other documents.

Date Requested
Current Airline and Status (i.e. AB TopBonus, AA Plat, etc)
Information submitted (i.e. physical card scan, activity statement, etc)
Any replies received other than confirmation
Date Confirmation Received