We always paid our car Tax at the Tax office, however, last year I paid as above through the bank (Garanti), account debited, and confirmed payment, yet I could only do tax for 6 months. In July I went to the Tax office to pay and they could not find the payment made in January, even though I had printed out the receipt they would not accept it and I ended up paying again! they told me to go to the bank and explain and get a refund, after much arguing I gave up at the bank and never did receive the refund.
Lesson learnt, reverted back to queuing at the Tax office.