Not ING bank, I would personally add four letters to the start of their name. They are notoriously difficult to deal with, especially from abroad where hanging up on you is far easier than listening to you (don't take my word for it, several people can confirm).
Try Alper at Garanti (Banker on CBF) or Finans - I have numerous customers from a previous life with both and they are helpful.
If you get an ATM card you can take money out in Turkey and at UK ATMs but I think there is a fee for doing it outside the UK.