Also, does your friend know that however much he wants to withdraw from a time deposit account must first be transferred to their daily/current account with the same bank.
Once the money is transferred it should be possible to then transfer to another bank including an account overseas.
Worth mentioning that some banks impose limits on how much can be withdrawn or transferred in a day, even online, and that permissions tend to be blocked until you tell them to lift or raise them.
For example when I had an account with ING they had a limit of 5000 that could be transferred to another bank.
The banks here tend to do the same with bank cards, permission to use a credit card to buy online needs to be authorized by you, usually in branch, it isn't necessarily automatic.
And of course Debit Cards can't be used in Turkey for online shopping, in case anyone new to the intricacies of Turkish banking is reading.