We were originally with Akbank who had the most obnoxious staff I have ever met. We encountered lengthy waits sometimes as long as one and half hours with Turkish people pushing in front of us. On two occassions we went on our interest day and drew our money out and then told it was the wrong day and we had lost our interest. On the second time we demanded to see the manager and insisted our interest was refunded. The bank teller accused me of altering the date in the book- now why would I do that, it wasnt even the right month let alone the correct day. It was near the end of the month. We closed our account the following day, and took our hard earned money to the HSBC.
Never had better service - never had to wait longer than 10 mins and all the staff know us and are always willing to help us. Asked if we could get more interest last month and they immediatedly shut our account and opened another one with 1% more interest. If the manager is there he always comes out shakes our hands and asks is everything is OK.
To be fair to the Akbank my neighbour who still banks with them says the bank has improved.