Turkish Airlines is currently offering a status match from other airlines.
If you're a Silver-level cardholder, you'll be matched to Turkish Airlines Miles&Smiles Classic Plus level, which is Star Alliance Silver.
Gold-level cardholders will be matched to Miles&Smiles Elite, which is Star Alliance Gold.
Status is valid for 2 years from date of status match.
In order to get the match, Sign up for a Turkish Airlines M&S Account
here.
Then email Turkish Airlines, customermiles@thy.com. including a scanned copy of your existing frequent flyer card and your most recent account statement.
What's also really great is their re qualification requirements,
In order to re-qualify for Classic Plus membership (*S), a Classic card holder needs to collect 17.000 Status Miles either within the first year or 35.000 Status Miles within 2 years of the Classic Plus membership.
In order to re-qualify for Elite membership (*G) members residing out of Turkey need to collect 25.000 Status Miles either within the first year or 37.500 Status Miles within 2 years of the Elite membership. Otherwise, the membership status will be renewed as "Classic Plus".
Here you can see all the accrual rates for their partners.