As a Turkish resident who lives in Turkey and owning a Scottish LP , I can tell that both banks are not possible. Thats not legally possible,I dont know if there are some extremely illegal ways, but legally thats not possible.
Can tell both banks are strong though. Ziraat is state funded, and state does all transactions through them So as long as there will be Turkey, there will be Ziraat. Established in 1863, older than all those s**t we use in some shitty islands combined 🙂
And Yapi Kredi established in 1944, older than any other banks here too also, belongs to Koc Group, the︀ biggest holding in Turkey.
So , both banks are very strong. But you cant open︁ an account without a Turkish Tax id in a legal way.